yumiko sakuma 佐久間裕美子 has 3,109 followers on Substack as of Oct 31, 2026. On the latest board read, Nov 6, 2026, they were #52 on Substack's International Bestsellers board. 37 publications recommend them, and they recommend 7.
Last read Oct 31, 2026 (UTC). Followers are not email subscribers. Substack lists only the newest 50 recommendations for each publication, so a recommender count of 50 or more is a floor. History starts Oct 31, 2026; Substack publishes nothing earlier.
- Followers
- 3,109
- read Oct 31
- Last 7 days
- first number on Nov 7
- Last 30 days
- first number on Nov 30
- Subscribers
- 2.9K+
- rounded by Substack
- Paid subscribers
- 100+
- bestseller badge 100+
- Recommended by
- 37
- none new in 30 days
- Recommends
- 7
- Bestsellers rank
- #52
- International
Followers by day
Tracking since Oct 31, 2026. This is the first reading. Substack doesn't publish past follower counts, so history starts the day I first read a writer and grows by one reading every 3 days (daily if it's on your watchlist). The 7-day change appears on Nov 7, the 30-day change on Nov 30. Recommendation dates below go further back: they're Substack's own.
Show as a table
| Date | Followers | Change | Subscribers | Paid band |
|---|---|---|---|---|
| Oct 31, 2026 | 3,109 | 2.9K+ |
Leaderboard positions
| Board | Rank now | Best on record | Reads on it |
|---|---|---|---|
| International Bestsellers | #52 | #52 | 4 of 4 |
| International Rising | #14 | #10 | 2 of 4 |
Rank on each read
| Writer | Oct 3107:00 | Oct 3113:00 | Oct 3119:47 | Nov 621:50 | Move |
|---|---|---|---|---|---|
| International Bestsellers | 53 | 53 | 53 | 52 | ▲1 |
| International Rising | 10 | 14 | ▼4 |
I read every board once a day.
Recommendations
37 publications recommend yumiko sakuma 佐久間裕美子. yumiko sakuma 佐久間裕美子 recommends 7, and 2 of those recommend back. Lists read Oct 31.
When the recommendations started
Show as a table
| Month | Started |
|---|---|
| 2022-07 | 1 |
| 2022-08 | 1 |
| 2023-01 | 3 |
| 2023-02 | 1 |
| 2023-03 | 2 |
| 2023-04 | 1 |
| 2023-05 | 1 |
| 2023-07 | 4 |
| 2023-08 | 2 |
| 2023-10 | 1 |
| 2024-06 | 1 |
| 2024-08 | 1 |
| 2024-10 | 1 |
| 2024-12 | 2 |
| 2025-01 | 2 |
| 2025-03 | 1 |
| 2025-05 | 1 |
| 2025-07 | 1 |
| 2025-10 | 1 |
| 2025-11 | 1 |
| 2025-12 | 1 |
| 2026-05 | 4 |
| 2026-07 | 1 |
| 2026-09 | 1 |
| 2026-10 | 1 |
Recommended by
- Kiyoto KOKUBUNstarted Oct 1, 2026
- フクロコウジ旅と本と人 原沢started Sep 21, 2026
- Bazaar Futurastarted Jul 27, 2026
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- Daughter の Substackstarted May 7, 2026
- 今井紀明 の Substackstarted May 7, 2026
- Yu's Substackstarted Dec 30, 2025
- Rika's Substackstarted Nov 8, 2025
- Tokyo Tender Pocketsstarted Oct 2025
- Border(lines) - 陌 Machi R. Oliveirastarted Jul 2025
- Jiri’s Substackstarted May 2025
- Le Substack de carlottastarted Mar 2025
- 翠川アプデ週報started Jan 2025
- inosinmk2started Jan 2025
- soft and weak like waterstarted Dec 2024
- test_y’s Substackstarted Dec 2024
- 縁もゆかりも Substack ver.started Oct 2024
- Fuji’s Substackstarted Aug 2024
- Swallowstarted Jun 2024
- Yuki’s Substackstarted Oct 2023
- デザイナーの英語帳started Aug 2023 · mutual
- Cahiers pour une viestarted Aug 2023 · mutual
- Ritsuko’s Substackstarted Jul 2023
All 37
- utou_oyama’s Substackstarted Jul 2023
- 保田さえ子’s Substackstarted Jul 2023
- BOOKPOTTERS -- 翻訳者のための書評講座started Jul 2023
- Yazuka’s Substackstarted May 2023
- mirror’s Substackstarted Apr 2023
- 母の呼吸がとまってからの環世界started Mar 2023
- neutral started Mar 2023
- Small Circle of Friends started Feb 2023
- miki’s Substackstarted Jan 2023
- みやまい’s Substackstarted Jan 2023
- Natsuki’s Substackstarted Jan 2023
- Hanabi's Taiwan logstarted Aug 2022
- Deep Breathstarted Jul 2022
Recommends
- Citation Neededstarted Oct 20, 2026new
- celinecelinesstarted Oct 9, 2026new
- デザイナーの英語帳started Aug 2023 · mutual
- Shiori Clarkstarted Aug 2023
- Cahiers pour une viestarted Aug 2023 · mutual
- 持続的な生活のためのノートstarted Mar 2023
- koko niwastarted Sep 2022
Substack lists the 50 newest recommenders of each publication. I add every recommendation found in the full lists of the 6,392 publications I read, so writers with many recommenders may still be missing a few small ones. "Started" is Substack's date.
Who recommends writers like this one
Publications that recommend at least two other International writers with 1,000 to 5,000 followers (83 writers in that group), but not yumiko sakuma 佐久間裕美子.
- recommends 25 of themThe Intellectual Investor
- recommends 7 of themCaptain Tim world news about politics and the ongoing wars
- recommends 4 of themColin’s Substack
- recommends 3 of them
Claire Berlinski@claireberlinski - recommends 3 of themThe Turbulent World with James M. Dorsey
- recommends 3 of themThe Tribal Dream-Stackers
- recommends 3 of themWe're Moving to Europe
- recommends 3 of themScenarica
- recommends 2 of them
Michael Spencer@aisupremacy - recommends 2 of them
Kaiser Y Kuo@kaiserykuo
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