KDP categories · Top KDP authors
Willie J Lockhart P E: Amazon KDP author data
Willie J Lockhart P E has 39 books on Amazon, 27 of them on a best-seller list in the last 30 days (best rank #2), mostly in Certification, Training & Reference, Security, Networking & Communications.
39Books on Amazon
27Listed in 30 days
4.5Average rating
| Median price | $12.99 |
|---|---|
| Price range (middle 50%) | $9.99 – $36.45 |
| Median reviews | 5 |
| Total reviews | 104 |
| New books (30 days) | 9 |
| Breakout books (30 days) | 5 |
What stands out
- 69% of the catalog made a best-seller list in the last 30 days: the whole backlist sells, not one hit.
- Median price $12.99, 18% above the median of their main category, Certification, Training & Reference.
- 9 new books in the last 30 days, 5 of them broke into a Best Sellers list.
Willie J Lockhart P E's best-ranked books
-
FE ELECTRICAL AND COMPUTER EXAM PREP 2026-2028: Complete Study Guide to Master All NCEES Review Topics with Practice Tests and Detailed Solutions for EIT Certification
by Willie J Lockhart P E
- Price$9.99
- Rating5.0
- Reviews4
-
CompTIA SERVER+ SK0-005 STUDY GUIDE 2026-2028: Master Hardware, Administration, Security, and Troubleshooting for Certification Success
by Willie J Lockhart P E
- Price$12.99
- Reviews-
-
CompTIA TECH+ FC0-U71 STUDY GUIDE 2026-2028: Master IT Fundamentals Exam with Practice Questions and Detailed Explanations for the V6 Certification Success
by Willie J Lockhart P E
- Price$9.99
- Rating4.8
- Reviews5
-
ASE A1–A9 STUDY GUIDE 2026–2028: Complete Master Technician Certification Book Covering A-Series Exams with Proven Strategies and Practice Questions for Success
by Willie J Lockhart P E
- Price$37.57
- Rating4.8
- Reviews5
-
ASE A1–A9 STUDY GUIDE 2026–2028: Complete Master Technician Certification Book Covering A-Series Exams with Proven Strategies and Practice Questions for Success
by Willie J Lockhart P E
- Price$9.99
- Rating4.8
- Reviews5
- Published2026-05
-
FE CIVIL EXAM PREP 2026-2028: Complete Study Guide for the NCEES Fundamentals of Engineering with Practice Questions and Detailed Explanations
by Willie J Lockhart P E
- Price$9.99
- Reviews-
-
CompTIA Linux+ XK0-006 STUDY GUIDE 2026-2028: Mastering the Command Line with Practice Tests and Detail Explanations for V8 Certification Success
by Willie J Lockhart P E
- Price$9.99
- Rating4.1
- Reviews7
-
CompTIA Linux+ XK0-006 EXAM PREP 2026-2028: The Complete V8 Certification Study Guide for Command-Line Mastery with Domain Review and Practice Tests
by Willie J Lockhart P E
- Price$9.99
- Rating4.8
- Reviews5
-
CompTIA CYSA+ CS0-004 STUDY GUIDE 2026–2028: Complete Cybersecurity Analyst Exam Preparation with Practice Questions, Domain Reviews and Answer Explanations
by Willie J Lockhart P E
- Price$12.99
- Rating5.0
- Reviews4
-
CompTIA DataSys+ DS0‑002 STUDY GUIDE 2026-2028: Built for the V2 Blueprint with New Coverage of Data Integration, ETL Pipelines, Vector Databases, and AI Concepts
by Willie J Lockhart P E
- Price$12.99
- Reviews-
Main categories
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.