KDP categories · Top KDP authors
Peter H. Gregory: Amazon KDP author data
As of Nov 6, 2026, Peter H. Gregory has 32 books on Amazon, 21 of them on a best-seller list in the last 30 days (best rank #3), mostly in Certification, Certification, Training & Reference, Management Information Systems.
| Median price | $36.80 |
|---|---|
| Price range (middle 50%) | $24.99 – $49.50 |
| Median reviews | 48 |
| Total reviews | 2,518 |
| New books (30 days) | 1 |
| Breakout books (30 days) | 1 |
What stands out
- 66% of the catalog made a best-seller list in the last 30 days: the whole backlist sells, not one hit.
Peter H. Gregory's best-ranked books
-
IT Disaster Recovery Planning For Dummies®
by Peter H. Gregory
- Price$19
- Rating4.3
- Reviews69
-
CISA Certified Information Systems Auditor All-in-One Exam Guide, Fourth Edition
by Peter H. Gregory
- Price$35.99
- Rating4.7
- Reviews253
-
CRISC Certified in Risk and Information Systems Control All-in-One Exam Guide, Second Edition
by Peter H. Gregory
- Price$37.91
- Rating4.4
- Reviews113
-
CISA Certified Information Systems Auditor Study Guide: Covers 2024 - 2029 Exam Objectives (Sybex Study Guide)
by Peter H. Gregory
- Price$16.99
- Rating4.3
- Reviews24
-
Chromebook For Dummies (For Dummies (Computer/Tech))
by Peter H. Gregory
- Price$20.04
- Rating4.2
- Reviews125
-
IAPP AIGP Artificial Intelligence Governance Professional Study Guide (Sybex Study Guide)
by Peter H. Gregory
- Price$51.99
- Rating4.4
- Reviews29
-
CRISC Certified in Risk and Information Systems Control Study Guide (Sybex Study Guide)
by Peter H. Gregory
- Price$47.99
- Rating5.0
- Reviews9
-
CISA Certified Information Systems Auditor Study Guide and Practice Tests Bundle: Covers 2024 Exam Objectives
by Peter H. Gregory
- Price$12.95
- Rating4.5
- Reviews2
-
CRISC Certified in Risk and Information Systems Control Study Guide (Sybex Study Guide)
by Peter H. Gregory
- Price$50
- Rating5.0
- Reviews9
-
CISA Certified Information Systems Auditor Study Guide: Covers 2024 - 2029 Exam Objectives (Sybex Study Guide)
by Peter H. Gregory
- Price$54
- Rating4.3
- Reviews24
Main categories
FAQ
How many books does Peter H. Gregory have on Amazon?
KDPTop tracks 32 of their books; 21 made an Amazon list in the last 30 days.
Which categories does Peter H. Gregory publish in?
Their books chart most often in Certification, Certification, Training & Reference, Management Information Systems.
How does Peter H. Gregory price their books?
The median price is $36.80; half of the books cost $24.99–$49.50.
Has Peter H. Gregory released new books recently?
1 new book in the last 30 days, 1 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.