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Yosuke Morikawa: Amazon KDP author data
As of Nov 6, 2026, Yosuke Morikawa has 13 books on Amazon, 10 of them on a best-seller list in the last 30 days (best rank #16), mostly in Card Games, Board Games, Reference.
| Median price | $9 |
|---|---|
| Price range (middle 50%) | $6.99 – $12.50 |
| Median reviews | 1 |
| Total reviews | 13 |
| New books (30 days) | 4 |
| Breakout books (30 days) | 2 |
What stands out
- 77% of the catalog made a best-seller list in the last 30 days: the whole backlist sells, not one hit.
- 4 new books in the last 30 days, 2 of them broke into a Best Sellers list.
Yosuke Morikawa's best-ranked books
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pgvector at Scale for PostgreSQL: Production Vector Search and RAG
by Yosuke Morikawa
- Price$12
- Reviews-
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pgvector at Scale for PostgreSQL: Production Vector Search and RAG
by Yosuke Morikawa
- Price$6.99
- Reviews-
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Japanese Tattoo Drawing: Step-by-Step Irezumi Motifs with Backgrounds and Color
by Yosuke Morikawa
- Price$12.99
- Reviews-
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Fix Your QuickBooks Online: The Small Business Owner's Guide to Duplicate Transactions, Unmatched Deposits, and Balances That Never Agree
by Yosuke Morikawa
- Price$9
- Reviews-
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Riichi Mahjong Made Simple: A Visual Beginner's Guide to Japanese Mahjong — From Mahjong Soul to the Real Table
by Yosuke Morikawa
- Price$6.99
- Rating5.0
- Reviews4
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Hanafuda Koi-Koi Made Simple: A Visual Beginner's Guide to Japan's Flower Card Game — Suits, Yaku, and Scoring, From Your First Hand to Playing Online
by Yosuke Morikawa
- Price$0
- Reviews-
- Published2026-06
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Building AI Apps with Dify: A Practical Guide to Workflows, RAG & Agents
by Yosuke Morikawa
- Price$7.99
- Rating5.0
- Reviews1
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Riichi Mahjong Scoring Made Simple: A Visual Drill Book to Count Fu and Han and Call Your Score — From Mahjong Soul to the Real Table
by Yosuke Morikawa
- Price$6.99
- Rating5.0
- Reviews1
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Riichi Mahjong Made Simple: A Visual Beginner's Guide to Japanese Mahjong — From Mahjong Soul to the Real Table
by Yosuke Morikawa
- Price$19.99
- Rating5.0
- Reviews4
- Published2026-06
-
Riichi Mahjong Scoring Made Simple: A Visual Drill Book to Count Fu and Han and Call Your Score — From Mahjong Soul to the Real Table
by Yosuke Morikawa
- Price$25
- Rating5.0
- Reviews1
- Published2026-07
Main categories
FAQ
How many books does Yosuke Morikawa have on Amazon?
KDPTop tracks 13 of their books; 10 made an Amazon list in the last 30 days.
Which categories does Yosuke Morikawa publish in?
Their books chart most often in Card Games, Board Games, Reference.
How does Yosuke Morikawa price their books?
The median price is $9; half of the books cost $6.99–$12.50.
Has Yosuke Morikawa released new books recently?
4 new books in the last 30 days, 2 of which reached a Best Sellers list.
About this data
Data comes from KDPTop's daily crawl of Amazon's public Best Sellers pages; medians use the latest list. The opportunity score (0–100, higher is easier to enter) combines the review barrier, the share of low-review books, list turnover, new-release share and price.