LetterA5 Cousin Size
- 2026 New
This is an envelope-style cover with a string-and-button closure, titled Letter. The design features a triangular flap and a combination of two contrasting fabrics with different textures.
A techo can feel like a letter to yourself. We created this cover with the hope that you’ll enjoy quiet moments of reflection—like writing a letter to your own heart. Even the action of winding and unwinding the string to open and close the cover is meant to be savored, as part of a mindful, personal ritual.
This cover combines a rich, smoky gray polyurethane material with an acrylic fabric made in Spain. Enjoy the contrast and the distinct feel of each texture.
The round button and the ends of the string are made from genuine leather. The deep khaki string looks elegant whether wrapped simply or crossed stylishly as you wind it around.
When you unwind the string and lift the triangular flap, this is what the inside looks like. The string is attached to the cover itself.
The pen hook holds a pen by its clip, while still maintaining the cover’s clean, refined silhouette when closed.
Take a moment to slow down and spend time with yourself. Like opening a letter with care, gently unfold your cherished techo.
Introduction to the Letter series products
(Hobonichi Techo 2026 lineup)
Staff List
- Photographer
- Styled Images: Yuki Nasuno / Product Detail: Hiroyuki Oe
- Stylist
- Mari Nagasaka
- Makeup & Hair
- KOUGO (HITOME)
- Model
- NIKO (TOMORROW TOKYO)
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Specifications*Specifications may vary slightly
- Cover
Size H: 230 x W: 440 x T: 3 mm / H: 9.1" x W: 17.3" x T: 0.1" Weight Approx. 127 g Main material Exterior: PU, acrylic / Interior: PU, acrylic, polyester / Parts: Cow leather Compatible Techo Books 
Cousin (A5)
1 page per day
Cousin Avec (A5)
1 page per day 6-month book
Day-Free
Monthly notebook
Cousin | One-Page-Per-Day TypeJapanese / English
type Monday Start (Japanese)
Monday Start (English)Size A5
H: 210 x W: 148 x T: 18 mm /
H: 8.3" x W: 5.8" x T: 0.7"
*Specifications may vary slightlyWeight Approx. 445 g Dates Jan 2026 - Dec 2026 (Jan start)
Apr 2026 - Mar 2027 (Apr start)- A daily techo with lots of space to write
- This A5-size techo provides ample space on each daily page. It’s great for keeping in one place at home or at work and you can use it to track your child’s growth or exchange with someone.
- Daily pages
- Yearly calendar
- Yearly index
- Monthly calendar
- Weekly pages
- Memo pages
Cousin Avec | One-Page-Per-Day Type (2-Book Set)Japanese
type Monday Start (Japanese) Size A5
Each Book: H: 210 x W: 148 x T: 10 mm /
H: 8.3" x W: 5.8" x T: 0.4"
*Specifications may vary slightlyWeight Each Book: Approx. 260 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
- Weekly pages
- Memo pages
Day-Free | Monthly Techo + NotebookJapanese
type Monday Start (Japanese) Size A5
H: 210 x W: 148 x T: 8 mm /
H: 8.3" x W: 5.8" x T: 0.3"
*Specifications may vary slightlyWeight Approx. 220 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 (Cousin English Edition / English / January Start)
Size A5 size
H: 210 x W: 148 x T: 18 mm / H: 8.3" x W: 5.8" x T: 0.7"
*Actual book size may vary slightlyWeight Approx. 445 g Language English Pages 544 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 Start of Week Monday-start week Yearly Calendar 2025, 2026, 2027 Yearly Index Jan. 2026 - Dec 2026 (4 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 Dec 29, 2025 - Jan 3, 2027 (106 pages) Memo Pages 6 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 / 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 and weekly pages) / Moon phase (daily pages include every phase, monthly calendars and weekly pages only include full and new moon) Other See the Exploring Each Type page for more details
- Book (Cousin / Japanese / January Start)
Size A5 size
H: 210 x W: 148 x T: 18 mm / H: 8.3" x W: 5.8" x T: 0.7"
*Actual book size may vary slightlyWeight Approx. 445 g Language Japanese Pages 544 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 Start of Week Monday-start week Yearly Calendar 2025, 2026, 2027 Yearly Index Jan. 2026 - Dec 2026 (4 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-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 Dec 29, 2025 - Jan 3, 2027 (106 pages) Memo Pages 6 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 / Gifts / Age Table / Conversion Chart / Getting the most of Hobonichi / Addresses / Personal Notes Listed Information Day of the year / Week of the year (listed on monthly calendars and weekly pages) / 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 and weekly pages only include full and new moon) Other See the Exploring Each Type page for more details
- Book (Cousin Avec / Japanese / January Start / 2-Book Set)
Size A5 size x 2 books
Each Book: H: 210 x W: 148 x T: 10 mm / H: 8.3" x W: 5.8" x T: 0.4"
*Actual book size may vary slightlyWeight Each Book: Approx. 260 g Language Japanese Pages Each Book: 288 pages Paper Type / Binding Thin, light Tomoe River paper that is smooth to write on and designed for planners / Stitch-binding Start of Week 3.7 mm Start of Week Monday-start week Yearly Calendar 2025, 2026, 2027 Yearly Index Book 1: Jan. - Dec. 2026 (4 pages)
Book 2: Jul. 2026 - Jun. 2027 (4 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 - Jun. 30, 2026 (187 pages)
Book 2: Jul. 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 Book 1: Dec. 29, 2025 - Jul. 5, 2026 (54 pages)
Book 2: Jun. 29, 2026 - Jan. 3, 2027 (54 pages)Memo Pages Book 1: 8 pages
Book 2: 4 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 / Gifts / Age Table / Conversion Chart / Getting the most of Hobonichi / Addresses / Personal Notes Listed Information Day of the year / Week of the year (listed on monthly calendars and weekly pages) / 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 and weekly pages only include full and new moon) Other See the Exploring Each Type page for more details
- Book (Day-Free A5 size / Japanese / Monthly)
Size A5 size
H: 210 x W: 148 x T: 8 mm / H: 8.3" x W: 5.8" x T: 0.3"
*Actual book size may vary slightlyWeight Approx. 220 g Language Japanese Pages 224 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 Start of Week Monday-start week Yearly Calendar 2025, 2026, 2027 Yearly Index Jan. - Dec. 2025 (4 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 / Gifts / Age Table / Conversion Chart / Getting the most of Hobonichi / 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.