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Ryouji Nakamura: Amazon KDP author data
As of Nov 6, 2026, Ryouji Nakamura has 12 books on Amazon, 12 of them on a best-seller list in the last 30 days (best rank #8), mostly in Mobile Devices, Tablets, Hardware.
| Median price | $6.99 |
|---|---|
| Price range (middle 50%) | $5.75 – $7.25 |
| Median reviews | - |
| Total reviews | 0 |
| New books (30 days) | 6 |
| Breakout books (30 days) | 2 |
What stands out
- 100% of the catalog made a best-seller list in the last 30 days: the whole backlist sells, not one hit.
- 6 new books in the last 30 days, 2 of them broke into a Best Sellers list.
Ryouji Nakamura's best-ranked books
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The Digital Journal Method: How to Build a Complete Planning System with GoodNotes on iPad
by Ryouji Nakamura
- Price$6
- Reviews-
- Published2026-07
-
iPad Note-Taking Mastery: The Complete System for Professionals, Students, and Creative Thinkers
by Ryouji Nakamura
- Price$6.99
- Reviews-
- Published2026-06
-
iPad Notes Magic: Transform Your Thinking, Capture Every Idea, and Build a Second Brain That Never Forgets — A Complete System for the Modern Digital Note-Taker —
by Ryouji Nakamura
- Price$4.99
- Reviews-
- Published2026-06
-
The Complete Notion Guide: A Beginner's Complete Guide to Notion — Pages, Blocks, Databases, and Building a Workspace That Fits You
by Ryouji Nakamura
- Price$8
- Reviews-
-
iPad Notes for Work: Transform Your Productivity: Unlock Speed, Clarity, and Results with Apple Notes & Apple Pencil
by Ryouji Nakamura
- Price$4
- Reviews-
-
iPad Notes Made Simple: The Complete Manual for Capturing, Organizing, and Using Your Notes Like a Pro
by Ryouji Nakamura
- Price$6.99
- Reviews-
-
APPLE WATCH FOR HEALTH & FITNESS: A No-Nonsense Guide to Smarter Workouts, Better Sleep, and Everyday Wellness
by Ryouji Nakamura
- Price$5
- Reviews-
-
GoodNotes Complete Guide: Take Notes, Annotate PDFs, and Organize Everything by Hand
by Ryouji Nakamura
- Price$6
- Reviews-
- Published2026-09
-
The iPad Writing System: Draft, Edit, and Publish Your Writing on Your iPad
by Ryouji Nakamura
- Price$7
- Reviews-
-
The Notion Second Brain: Build a Personal Knowledge System in Notion
by Ryouji Nakamura
- Price$7
- Reviews-
Main categories
FAQ
How many books does Ryouji Nakamura have on Amazon?
KDPTop tracks 12 of their books; 12 made an Amazon list in the last 30 days.
Which categories does Ryouji Nakamura publish in?
Their books chart most often in Mobile Devices, Tablets, Hardware.
How does Ryouji Nakamura price their books?
The median price is $6.99; half of the books cost $5.75–$7.25.
Has Ryouji Nakamura released new books recently?
6 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.