LeatherTS Basic - BlackA6 Original Size
We created this black leather cover with graphic designer Taku Satoh, who is in charge of the Hobonichi Techo’s design direction.
TS stands for the initials of Taku Satoh. Out of all the various Hobonichi Techo covers, this has been a staple in our lineup and has been a popular choice for over ten years.
The fine texture of the matte cow leather is soft from the first time you use it and fits comfortably in your hands. The smooth feel as you hold it in your hands is another characteristic of this leather.
The leather cover exudes an elegance with a black color that will suit any outfit. It makes it an ideal first-time leather cover and is also perfect for anyone who wants to own a standard leather cover that is simple, chic, and timeless.
The Hobonichi Techo leather covers are made with all-natural materials that have their own unique appearance. Every leather cover is a one-of-a-kind, all-natural product, so you can feel good knowing your cover is the only one like it in the world. Here are some of the unique characteristics you can expect to find.
- Markings that naturally occur during an animal’s life:
Wrinkles, veins, texture, and scratches
- Characteristics from the manufacturing process of natural leather:
Dark spots (occurs when components of the leather are exposed to iron in the air during the tanning and dyeing process)
About Taku Satoh
Graphic Designer. Graduated from Tokyo University of The Arts in 1979, majoring in design, and completed his master’s degree in 1981. Joined Dentsu, Inc. before establishing the Taku Satoh Design Office in 1984. Created product designs and branding for Oishii Gyunyu milk, Lotte XYLITOL gum, and much more.
Currently active across a broad spectrum of projects, including general direction for NHK Educational TV’s “Design-Ah” series and art direction for “Nihongo de Asobo.”
Current director of design museum 21_21 DESIGN SIGHT in Tokyo.
TSDO Website
Interviews with Taku Satoh on Hobo Nikkan Itoi Shinbun:
- Hobonichi has a logo now. (Japanese)
- How Taku Satoh “chooses.” (Japanese)
Introduction to the Standard series products
(Hobonichi Techo 2025 lineup)
Staff List
- Photographer
- Styled Images:Keiko Ichihara/ Product Detail: Hiroyuki Oe
- Stylist
- Mari Nagasaka
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Specifications*Specifications may vary slightly
- Cover
Size H: 165 x W: 244 x T: 3 mm / H: 6.5" x W: 9.6" x T: 0.1"
*Excluding pen holdersWeight Approx. 93 g Main material Exterior: Cow leather / Interior: Cow leather, polyester Compatible Techo Books 
Planner (A6)
1 page per day English edition
Original (A6)
1 page per day
Original Avec (A6)
1 page per day 6-month book
Day-Free
Monthly notebook
Planner | One-Page-Per-Day TypeEnglish
type Monday Start (English) Size A6
H: 148 x W: 105 x T: 15 mm /
H: 5.8" x W: 4.1" x T: 0.6"
*Specifications may vary slightlyWeight Approx. 190 g Dates Jan 2026 - Dec 2026 - The English-version daily techo with a refined design
- This compact A6 size techo has spacious daily pages and a simple graph-paper design that offers plenty of freedom to draw, paste, and write.
- Daily pages
- Yearly calendar
- Yearly index
- Monthly calendar
- Memo pages
Original | One-Page-Per-Day TypeStandard Edition (Japanese / English) / One Piece Edition (*1)
type Monday Start (Japanese)
Sunday Start (Japanese)
Monday Start (English)Size A6
H: 148 x W: 105 x T: 15 mm /
H: 5.8" x W: 4.1" x T: 0.6"
*Specifications may vary slightlyWeight Approx. 195 g Dates Jan 2026 - Dec 2026 (Jan start)
Apr 2026 - Mar 2027 (Apr start)- A classic easy-to-use techo
- This compact A6 size techo has spacious daily pages and a simple graph-paper design that offers plenty of freedom to draw, paste, and write.
- Daily pages
- Yearly calendar
- Yearly index
- Monthly calendar
- Memo pages
*1 Also compatible with the One Piece Edition Original Book.
Original Avec | One-Page-Per-Day Type (2-Book Set)Japanese
type Monday Start (Japanese) Size A6
Each Book: H: 148 x W: 105 x T: 8 mm /
H: 5.9" x W: 4.1" x T: 0.3"
*Specifications may vary slightlyWeight Each Book: Approx. 110 g Dates Book 1: Jan 2026 - June 2026
Book 2: July 2026 - Dec 2026- Each 6-month daily techo is thin and light for easy carry
- This techo splits the year into two 6-month books, making it easy to carry while keeping the same page design and layout as the standard edition.
- Daily pages
- Yearly calendar
- Yearly index
- Monthly calendar
- Memo pages
Day-Free | Monthly Techo + NotebookJapanese
type Monday Start (Japanese) Size A6
H: 148 x W: 105 x T: 8 mm /
W: 4.1" x H: 5.9" x T: 0.3"
*Specifications may vary slightlyWeight Approx. 110 g Dates Dec 2025 - Mar 2027 - A monthly notebook with undated pages to write freely
- This techo starts with monthly calendars and ends with undated graph paper pages so you can write whenever you want, and as much as you want.
- Monthly calendar
- Yearly calendar
- Yearly index
- Graph paper notebook pages
- Book (Original English Edition / English / January Start)
Size A6 size
H: 148 x W: 105 x T: 15 mm / H: 5.8" x W: 4.1" x T: 0.6"
*Actual book size may vary slightlyWeight Approx. 195 g Language English Pages 464 pages Paper Type / Binding Thin, light Tomoe River paper that is smooth to write on and designed for planners / Stitch-binding Graph Paper Size 3.7 mm
*Monthly calendar pages are 3.45 mmStart of Week Monday-start week Yearly Calendar 2025, 2026, 2027 Yearly Index Dec. 2025 - Mar. 2027 (8 pages) Monthly Calendar Dec. 2025 - Mar. 2027 (32 pages) Daily Pages Jan. 1 - Dec. 31, 2026 (377 pages)
*A page is included at the beginning of each month to help in planning ahead.
*Every two-page spread includes one daily quote.
*Includes a mini monthly calendar at the bottom right of every two-page spread (Monday-start).
*Additionally, a blank two-page spread is featured at the beginning to provide a free area when starting out the book.Daily Quotes One quote per two-page spread (English) Weekly Pages Not included Memo Pages 17 pages Bonus Pages Time Table / Graph Paper / Favorites / My 100 / Memories 2026 / 12 Switches to Help You Focus / For a Comfortable Night’s Sleep / Words to Remember / 365 Days Check-Off Sheet / Looking Back at the Year 2026 / Getting the Most Out of Your Hobonichi Techo / Gifts / Addresses / Personal Notes Listed Information Day of the year / Week of the year (listed on monthly calendars) / Moon phase (daily pages include every phase, monthly calendars only include full and new moon) Other See the Exploring Each Type page for more details
- Book (Planner / English / January Start)
Size A6 size
H: 148 x W: 105 x T: 15 mm / H: 5.8" x W: 4.1" x T: 0.6"
*Actual book size may vary slightlyWeight Approx. 190 g Language English Pages 448 pages Paper Type / Binding Thin, light Tomoe River paper that is smooth to write on and designed for planners / Stitch-binding Graph Paper Size 4 mm Start of Week Monday-start week Yearly Calendar 2026, 2027 Yearly Index Dec. 2025 - Mar. 2027 (8 pages) Monthly Calendar Dec. 2025 - Mar. 2027 (32 pages) Daily Pages Jan. 1 - Dec. 31, 2026 (377 pages)
*A page is included at the beginning of each month to help in planning ahead.
*Every two-page daily page spread includes one daily quote.
*Includes a mini monthly calendar at the bottom right of every two-page spread (Monday-start).
*Additionally, a blank two-page spread is featured at the beginning to provide a free area when starting out the book.Daily Quotes One quote per two-page spread (English) Weekly Pages Not included Memo Pages 14 pages Bonus Pages Important Contacts / International Size Charts / The Ultimate Packing List / My 100 / Memories 2026 / Mochi - Japan’s Favorite Sticky Treat / Shinkansen - Travel Japan on the Bullet Train / Personal Notes Listed Information Day of the year / Week of the year (listed on monthly calendars and daily pages) / Moon phase (daily pages include every phase, monthly calendars only include full and new moon) Other See the Exploring Each Type page for more details
- Book (Original / Japanese / January Start)
Size A6 size
H: 148 x W: 105 x T: 15 mm / H: 5.8" x W: 4.1" x T: 0.6"
*Actual book size may vary slightlyWeight Approx. 195 g Language Japanese Pages 464 pages Paper Type / Binding Thin, light Tomoe River paper that is smooth to write on and designed for planners / Stitch-binding Graph Paper Size 3.7 mm
*Monthly calendar pages are 3.45 mmStart of Week Monday-start week or Sunday-start week Yearly Calendar 2025, 2026, 2027 Yearly Index Dec. 2025 - Mar. 2027 (8 pages) Monthly Calendar Dec. 2025 - Mar. 2027 (32 pages) Daily Pages Jan. 1 - Dec. 31, 2026 (377 pages)
*A page is included at the beginning of each month to help in planning ahead.
*All daily pages include daily quotes.
*Includes a mini monthly calendar at the bottom right of every two-page spread (Monday- / Sunday-start).
*Additionally, a blank two-page spread is featured at the beginning to provide a free area when starting out the book.Daily Quotes One per day (Japanese) Weekly Pages Not included Memo Pages 15 pages Bonus Pages Time Table / Graph Paper / Favorites / My 100 / Memories 2026 / 12 Switches to Help You Focus / For a Comfortable Night’s Sleep / Solar Terms / Emergency Preparedness / Conversion Chart / Getting the most of Hobonichi / Gifts / Age Table / Addresses / Personal Notes Listed Information Day of the year / Week of the year (listed on monthly calendars) / Old lunar calendar / Rokuyo (traditional Japanese lunisolar calendar) (listed on monthly calendars) / Solar terms / Japanese holidays / Moon phase (daily pages include every phase, monthly calendars only include full and new moon) Other See the Exploring Each Type page for more details
- Book (Original Avec / Japanese / January Start / 2-Book Set)
Size A6 size x 2 books
Each Book: H: 148 x W: 105 x T: 8 mm / H: 5.9" x W: 4.1" x T: 0.3"
*Actual book size may vary slightlyWeight Each Book: Approx. 110 g Language Japanese Pages Each Book: 240 pages Paper Type / Binding Thin, light Tomoe River paper that is smooth to write on and designed for planners / Stitch-binding Graph Paper Size 3.7 mm
*Monthly calendar pages are 3.45 mmStart of Week Monday-start week Yearly Calendar 2025, 2026, 2027 Yearly Index Book 1: Dec. 2025 - Mar. 2027 (8 pages)
Book 2: Jun. 2026 - May 2027 (6 pages)Monthly Calendar Book 1: Dec. 2025 - Jul. 2026 (16 pages)
Book 2: Jun. 2026 - Jan. 2027 (16 pages)Daily Pages Book 1: Jan. 1 - June 30, 2026 (187 pages)
Book 2: July 1 - Dec. 31, 2026 (190 pages)
*A page is included at the beginning of each month to help in planning ahead.
*All daily pages include daily quotes.
*Includes a mini monthly calendar at the bottom right of every two-page spread (Monday-start).
*Additionally, a blank two-page spread (three pages for Book 2) is featured at the beginning to provide a free area when starting out the book.Daily Quotes One per day (Japanese) Weekly Pages Not included Memo Pages Book 1: 2 pages
Book 2: 0 pagesBonus Pages Time Table / Graph Paper / Favorites / My 100 / Memories 2026 / 12 Switches to Help You Focus / For a Comfortable Night’s Sleep / Solar Terms / Emergency Preparedness / Conversion Chart / Getting the most of Hobonichi / Gifts / Age Table / Addresses / Personal Notes Listed Information Day of the year / Week of the year (listed on monthly calendars) / Old lunar calendar / Rokuyo (traditional Japanese lunisolar calendar) (listed on monthly calendars) / Solar terms / Japanese holidays / Moon phase (daily pages include every phase, monthly calendars only include full and new moon) Other See the Exploring Each Type page for more details
- Book (Original - One Piece Edition / Japanese / January Start) *On sale October 1
Size A6 size
H: 148 x W: 105 x T: 15 mm / H: 5.8" x W: 4.1" x T: 0.6"
*Actual book size may vary slightlyWeight Approx. 195 g Language Japanese Pages 464 pages Paper Type / Binding Thin, light Tomoe River paper that is smooth to write on and designed for planners / Stitch-binding Graph Paper Size 3.7 mm
*Monthly calendar pages are 3.45 mmStart of Week Monday-start week Yearly Calendar 2025, 2026, 2027 Yearly Index Dec. 2025 - Mar. 2027 (8 pages) Monthly Calendar Dec. 2025 - Mar. 2027 (32 pages) Daily Pages Jan. 1 - Dec. 31, 2026 (377 pages)
*A page is included at the beginning of each month to help in planning ahead.
*All daily pages include daily quotes.
*All daily pages include character names of those who celebrate their birthday that day (as of Vol.110)
*Additionally, a blank two-page spread is featured at the beginning to provide a free area when starting out the book.Daily Quotes One per day (Japanese / One Piece edition) Weekly Pages Not included Memo Pages 12 pages Bonus Pages One Piece Chronology / One Piece Trivia You’ll Want to Share Tomorrow / The Fluffy Animal Encyclopedia of One Piece / WANTED / Time Table / Favorites / My 100 / Solar Terms / Emergency Preparedness / Gifts / Age Table / Addresses / Personal Notes Listed Information Day of the year / Week of the year (listed on monthly calendars) / Old lunar calendar / Rokuyo (traditional Japanese lunisolar calendar) (listed on monthly calendars) / Solar terms / Japanese holidays / Moon phase (daily pages include every phase, monthly calendars only include full and new moon)
- Book (Day-Free A6 size / Japanese / Monthly)
Size A6 size
H: 148 x W: 105 x T: 8 mm / W: 4.1" x H: 5.9" x T: 0.3"
*Actual book size may vary slightlyWeight Approx. 110 g Language Japanese Pages 240 pages Paper Type / Binding Thin, light Tomoe River paper that is smooth to write on and designed for planners / Stitch-binding Graph Paper Size 3.7 mm
*Monthly calendar pages are 3.45 mmStart of Week Monday-start week Yearly Calendar 2025, 2026, 2027 Yearly Index Dec. 2025 - Mar. 2027 (8 pages) Monthly Calendar Dec. 2025 - Mar. 2027 (32 pages) Daily Quotes Included (Japanese) Graph Paper 171 pages Bonus Pages Time Table / Graph Paper / Favorites / My 100 / Memories 2026 / 12 Switches to Help You Focus / For a Comfortable Night’s Sleep / Solar Terms / Emergency Preparedness / Conversion Chart / Getting the Most of Hobonichi / Gifts / Age Table / Addresses / Personal Notes Listed Information Day of the year / Week of the year (listed on monthly calendars) / Old lunar calendar / Rokuyo (traditional Japanese lunisolar calendar) (listed on monthly calendars) / Solar terms / Japanese holidays / Moon phase (Full and new moon listed on monthly calendars) Other See the Exploring Each Type page for more details
User recommendations
If you’ve used any of these products, we welcome your notes on what you like about them or what led you to buy them so we can share it with customers who are currently considering these products. We’d also love to welcome comments from customers who purchased their techo outside the Hobonichi Store or received their book as a gift.
Please Read Before You Buy
We’ve compiled a list of warnings, potential issues, and tips to keep in mind for this particular product. Additionally, the color of the product may be slightly different in actuality than compared to how it appeared on a computer or smartphone screen.
- Pen holder fits pens up to 13.5 mm wide
The pen holder is designed to fit the 12.2 mm (0.48") diameter Jetstream pen offered as a free Hobonichi Store Exclusive Bonus. Pens with certain shapes and materials may be difficult to pull through the holder. The holder can fit pens up to 13.5 mm (0.53") in diameter.
- Leather may contain preexisting wrinkles and marks
In order to allow customers the enjoyment of all-natural leather, the leather is processed in a way that retains its original feel. This may leave imperfections visible on the surface of the cover, such as wrinkles, scratches, stains, or vein marks.
Depending on the conditions in which the cover is used, natural oils of the leather may emerge and appear as stains. We ask for your understanding for these naturally-occurring characteristics of genuine leather.
- Color transfer may occur due to friction, pressure, or moisture
Color may transfer to other items through friction or prolonged contact. This risk increases when the cover is exposed to water or sweat, so please take extra care when carrying it near clothing or other belongings.