KDP categories · Top KDP authors

Ryan J. Mercer: Amazon KDP author data

Ryan J. Mercer has 29 books on Amazon, 29 of them on a best-seller list in the last 30 days (best rank #1), mostly in Servers, Introductory & Beginning, Operating Systems.

29Books on Amazon
29Listed in 30 days
1.9Average rating
Median price$3.99
Price range (middle 50%)$0.99 – $13.78
Median reviews2
Total reviews21
New books (30 days)18
Breakout books (30 days)14

What stands out

  • 100% of the catalog made a best-seller list in the last 30 days: the whole backlist sells, not one hit.
  • Median price $3.99, 85% below the median of their main category, Servers.
  • 18 new books in the last 30 days, 14 of them broke into a Best Sellers list.

Ryan J. Mercer's best-ranked books

  1. The Complete Homelab for Beginners: Build Your Own Private Server with Proxmox, Linux, Doc book cover by Ryan J. Mercer

    The Complete Homelab for Beginners: Build Your Own Private Server with Proxmox, Linux, Docker, Pi-hole, Jellyfin, Home Assistant, NAS Storage, VPNs, and ... (Computer Programming Made Easy Book 20)

    by Ryan J. Mercer

    • Price$3.99
    • Rating1.6
    • Reviews3
    • Published2026-08

    View on Amazon · Full data on KDPTop

  2. The Complete Homelab for Beginners: Build Your Own Private Server with Proxmox, Linux, Doc book cover by Ryan J. Mercer

    The Complete Homelab for Beginners: Build Your Own Private Server with Proxmox, Linux, Docker, Pi-hole, Jellyfin, Home Assistant, NAS Storage, VPNs, ... Access (Computer Programming Made Easy)

    by Ryan J. Mercer

    • Price$14.99
    • Rating1.6
    • Reviews3

    View on Amazon · Full data on KDPTop

  3. Advanced SQL Mastery: Build High-Performance Queries, Optimize Databases, Use Window Funct book cover by Ryan J. Mercer

    Advanced SQL Mastery: Build High-Performance Queries, Optimize Databases, Use Window Functions, CTEs, Stored Procedures, Indexes, Views, and Real-World ... (Computer Programming Made Easy Book 17)

    by Ryan J. Mercer

    • Price$0.99
    • Reviews-

    View on Amazon · Full data on KDPTop

  4. Proxmox VE for Intermediate Users: Build a Smarter Homelab with Advanced Virtual Machines, book cover by Ryan J. Mercer

    Proxmox VE for Intermediate Users: Build a Smarter Homelab with Advanced Virtual Machines, LXC Containers, Docker, ZFS Storage, VLANs, Backups, Clustering, ... (Computer Programming Made Easy Book 21)

    by Ryan J. Mercer

    • Price$0.99
    • Reviews-

    View on Amazon · Full data on KDPTop

  5. SQL for Beginners: Learn Databases, Queries, Joins, Tables, Data Analysis, and Real-World  book cover by Ryan J. Mercer

    SQL for Beginners: Learn Databases, Queries, Joins, Tables, Data Analysis, and Real-World SQL Skills Step by Step (Computer Programming Made Easy Book 14)

    by Ryan J. Mercer

    • Price$0.99
    • Rating1.0
    • Reviews1

    View on Amazon · Full data on KDPTop

  6. Proxmox VE for Beginners: Build a Home Server with Virtual Machines, Linux Containers, Doc book cover by Ryan J. Mercer

    Proxmox VE for Beginners: Build a Home Server with Virtual Machines, Linux Containers, Docker, Storage, Networking, Backups, and Self-Hosted Apps Step by Step (Computer Programming Made Easy Book 19)

    by Ryan J. Mercer

    • Price$3.99
    • Rating2.0
    • Reviews2

    View on Amazon · Full data on KDPTop

  7. Power BI for Beginners 2026: Learn Data Analysis, Power Query, DAX, Data Modeling, Interac book cover by Ryan J. Mercer

    Power BI for Beginners 2026: Learn Data Analysis, Power Query, DAX, Data Modeling, Interactive Dashboards, Excel Integration, and Real-World Business ... ... (Computer Programming Made Easy Book 27)

    by Ryan J. Mercer

    • Price$5.99
    • Reviews-

    View on Amazon · Full data on KDPTop

  8. Proxmox VE for Beginners: Build a Home Server with Virtual Machines, Linux Containers, Doc book cover by Ryan J. Mercer

    Proxmox VE for Beginners: Build a Home Server with Virtual Machines, Linux Containers, Docker, Storage, Networking, Backups, and Self-Hosted Apps Step by Step (Computer Programming Made Easy)

    by Ryan J. Mercer

    • Price$15.48
    • Rating2.0
    • Reviews2

    View on Amazon · Full data on KDPTop

  9. Linux Command Line for Beginners: Learn Terminal Commands, Bash Shell, File Management, Pe book cover by Ryan J. Mercer

    Linux Command Line for Beginners: Learn Terminal Commands, Bash Shell, File Management, Permissions, SSH, Ubuntu Server & Real-World Linux Skills Step by Step (Computer Programming Made Easy, Book 9)

    by Ryan J. Mercer

    • Price$13.86
    • Rating1.0
    • Reviews1

    View on Amazon · Full data on KDPTop

  10. JavaScript Programming for Beginners: Learn JavaScript Fast With Step-by-Step Lessons, Rea book cover by Ryan J. Mercer

    JavaScript Programming for Beginners: Learn JavaScript Fast With Step-by-Step Lessons, Real Projects & Zero Coding Experience Needed (Computer Programming Made Easy Book 4)

    by Ryan J. Mercer

    • Price$5.99
    • Reviews-

    View on Amazon · Full data on KDPTop

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.