KDP categories · Top KDP authors
Reference & Collections (Biographies & Memoirs, Books): Amazon KDP category data
Amazon Books Best Sellers data for Reference & Collections (Biographies & Memoirs, Books), updated Nov 3, 2026: median price $12.97, median 302 reviews, average rating 4.5 and a KDPTop opportunity score of 28/100 (highly competitive).
| Price range (middle 50%) | $10.94 – $17.59 |
|---|---|
| Average rating | 4.5 |
| New releases (90 days) | 11% |
| Books on the list | 100 |
| Store | Books |
What stands out
- Its median reviews are 13% of the parent category Biographies & Memoirs (2,387), one of the easier corners under it.
Top 10 Reference & Collections best sellers
-
Kitchen Confidential: Adventures in the Culinary Underbelly
- List rank#1
- Price$10.48
- Rating4.8
- Reviews8,805
-
Benjamin Franklin: An American Life
- List rank#2
- Price$28.95
- Rating4.6
- Reviews6,150
-
Kitchen Confidential Annotated Edition: Adventures in the Culinary Underbelly
- List rank#3
- Price$16.74
- Rating4.8
- Reviews208
-
Plutarch's Lives Volume 1 (Modern Library Classics)
by Plutarch
- List rank#4
- Price$9.73
- Rating4.6
- Reviews284
-
Tell Me Your Life Story, Dad: A Father’s Guided Journal and Memory Keepsake Book (Tell Me Your Life Story® Series Books)
- List rank#5
- Price$11.99
- Rating4.8
- Reviews5,328
-
Trillion Dollar Coach: The Leadership Playbook of Silicon Valley's Bill Campbell ― A Bestselling Guide to Management and Mentorship
by Eric Schmidt
- List rank#6
- Price$13.65
- Rating4.5
- Reviews3,531
-
Profiles in Courage: JFK's Pultizer Prize-Winning Classic
by John F. Kennedy
- List rank#7
- Price$9.68
- Rating4.6
- Reviews2,123
-
Kasher in the Rye: The True Tale of a White Boy from Oakland Who Became a Drug Addict, Criminal, Mental Patient, and Then Turned 16
by Moshe Kasher
- List rank#8
- Price$17.02
- Rating4.4
- Reviews2,094
-
The Art of Memoir: A NYT Bestselling Memoirist’s Guide to the Craft of Writing
by Mary Karr
- List rank#9
- Price$11
- Rating4.5
- Reviews1,719
-
The Book of Myself: A Do-It-Yourself Autobiography in 201 Questions
by David Marshall
- List rank#10
- Price$11.38
- Rating4.5
- Reviews2,324
Same niche in Kindle eBooks: Reference & Collections
FAQ
Is Reference & Collections a good niche for Amazon KDP?
Its KDPTop opportunity score is 28/100, which makes it highly competitive. The median best seller has 302 reviews and sells for $12.97.
How many reviews do you need to rank in Reference & Collections?
The median best seller has 302 reviews, and 29% of them have fewer than 100.
What do Reference & Collections best sellers cost?
The median price is $12.97; half of the best sellers are priced between $10.94 and $17.59.
Can new books break into Reference & Collections?
11% of the current best sellers were released in the last 90 days.
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.