KDP categories · Top KDP authors
Bibliographies & Indexes (Reference, Books): Amazon KDP category data
Amazon Books Best Sellers data for Bibliographies & Indexes (Reference, Books), updated Nov 3, 2026: median price $44.47, median 5 reviews, average rating 4.5 and a KDPTop opportunity score of 25/100 (highly competitive).
| Price range (middle 50%) | $32.19 – $65.73 |
|---|---|
| Average rating | 4.5 |
| New releases (90 days) | 5% |
| Books on the list | 99 |
| Store | Books |
What stands out
- Its median reviews are 1% of the parent category Reference (610), one of the easier corners under it.
- At $44.47 its median price beats 95% of Books categories, leaving more margin per copy.
- Its review barrier is lower than in 90% of Books categories: the median best seller has only 5 reviews, so new books can chart with few.
Top 10 Bibliographies & Indexes best sellers
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![ASVAB Study Guide & Test Prep [2 in 1]: The Ultimate All-in-One Study System to Master Eve book cover by Optimal Prep Publishing](https://images-na.ssl-images-amazon.com/images/I/61hWkbzSqxL._AC_UL300_SR300,200_.jpg)
ASVAB Study Guide & Test Prep [2 in 1]: The Ultimate All-in-One Study System to Master Every ASVAB Section and Ace the AFQT with Exam-Ready Practice Tests and Step-by-Step Explanations
- List rank#1
- Price$35.62
- Rating4.6
- Reviews569
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ACT® Test Prep: The Complete and Up-to-Date Prep Book to Master the ACT® Exam. Step-by-Step Explanations, Test-Day Tips, and Full-Length Practice Tests
by Benton Learning
- List rank#2
- Price$28.58
- Rating4.6
- Reviews702
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Series 65 Study Guide: The blueprint to study smarter for the Uniform Investment Adviser Law Examination and feel confident on test day
by NS Publications
- List rank#3
- Price$36.51
- Rating4.7
- Reviews366
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ISEE Lower Level Test Prep: The Complete and Up-to-Date Prep Book with Full Length Practice Tests and Easy-to-Follow Explanations to Ace the ISEE Lower Level Exam
- List rank#4
- Price$35.95
- Rating4.6
- Reviews200
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The Jazz Standards: A Guide to the Repertoire
by Ted Gioia
- List rank#5
- Price$40.74
- Rating4.7
- Reviews118
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RBT Study Guide: Pass the Registered Behavior Technician Exam the Easy Way | Includes Effective Strategies, Insider Secrets, 600+ Practice Questions & In-Depth Answer Explanations
by Margaret Hartley
- List rank#6
- Price$23.97
- Rating4.5
- Reviews252
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PMP Exam Prep: The Complete Guide to Ace the PMP Exam and Achieve Your Best Score | Includes 10 Full-Length Practice Tests and Flashcards to Master Every Domain and Earn Your Certification
by Morgan l. Whitaker
- List rank#7
- Price$19.90
- Rating4.0
- Reviews111
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Medieval Latin: An introduction and bibliographical guide
by F.A.C. Mantello
- List rank#8
- Price$44.95
- Rating4.8
- Reviews17
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Vocabulary of the Ancient Commentators on Aristotle, A: Combining the Greek–English Indexes from the Eponymous Series Spanning Works from the 2nd Century CE to Late Antiquity
by Richard D. McKirahan
- List rank#9
- Price$54.95
- Reviews-
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LSAT Prep Book 2025-2026: 60 Full-Length Practice Tests + Training Platform | New Digital Format | Law School Admission Study Plan | Master Logical & Analytical Reasoning for 170+ Score in 28 Days
by Grant Foster
- List rank#10
- Price$24.99
- Rating3.7
- Reviews74
FAQ
Is Bibliographies & Indexes a good niche for Amazon KDP?
Its KDPTop opportunity score is 25/100, which makes it highly competitive. The median best seller has 5 reviews and sells for $44.47.
How many reviews do you need to rank in Bibliographies & Indexes?
The median best seller has 5 reviews, and 90% of them have fewer than 100.
What do Bibliographies & Indexes best sellers cost?
The median price is $44.47; half of the best sellers are priced between $32.19 and $65.73.
Can new books break into Bibliographies & Indexes?
5% 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.