What Book Reviews and Resources Are Available on XP123.com?

Updated

XP123.com hosts Bill Wake's book reviews plus a curated set of resource pages on refactoring, test-driven development, user stories, coaching, and testing. The reviews section is the main place to find book commentary; the resource links are mostly pointers to articles and materials, some of which now live on external sites.

Book Reviews on XP123.com

The site's Reviews section collects Bill Wake's reviews, described as covering "a variety of topics" and "mostly books." The page itself does not list individual review titles or the specific books covered, so you need to open the Reviews section to see the current catalog.

One disclosure matters if you plan to buy anything: the site states that purchases made through its Amazon links give Bill Wake a small Amazon credit. That is an affiliate arrangement, not a paywall — the reviews themselves are readable on the site.

Resource Pages and Topic Hubs

Beyond reviews, XP123.com organizes its material into topic areas. The "Start Here" section points to overview pages for:

  • Comics — a series Bill Wake has produced
  • Test-Driven Development (TDD)
  • Refactoring
  • User Stories

A separate Resources line links to material on Refactoring, TDD, Set-Based Design, Coaching, and Testing.

The site also lists its most popular articles, which double as entry points into the same topics:

Article Topic
TDD is an Alchemy Trick: Points and Partitions TDD
INVEST in Good Stories User stories
Twenty Ways to Split Stories User stories
XP on One Page, Scrum on a Page XP and Scrum overviews
Set-Based Concurrent Engineering Lean / set-based design
Scrum from Hell Scrum practice
Test-First Challenge TDD practice

There is also a "Room and Charts Gallery" that invites contributions and picture sharing, and a note that "Job Aids" has moved to an external site.

What Has Moved Off the Site

Some material that used to live on XP123.com has migrated elsewhere:

  • billwake.com — Bill Wake's posts unrelated to agile software
  • jobaids.info — material on how to create job aids

If you are looking for a specific older resource and cannot find it on XP123.com, check these two sites before assuming it is gone.

Who Is Behind the Site

Bill Wake is an independent consultant and teacher who has worked with XP and Agile software across financial, biotechnology, and publishing domains, among others. He is the author of Extreme Programming Explored, Refactoring Workbook, Design Patterns in Java (with Steve Metsker), and Refactoring in Ruby (with Kevin Rutherford). That background is useful context when weighing the reviews: they come from a long-time practitioner and author in the XP and refactoring space rather than a general-interest review site.

Practical Notes

  • The site does not display pricing for any content; the only commercial element mentioned is the Amazon affiliate credit on book links.
  • Reviews are the place to look for book opinions; the resource links are the place to look for articles and practice material.
  • The site also mentions a Twitch stream (schedule announced on Mastodon, typically 9 am EST / 2 pm UTC, Monday–Thursday) and a current project on building a breadboard for learning about compilers — useful if you want to follow ongoing work rather than static articles.