Kanban and Scrum: Making the Most of Both (2009) by Henrik Kniberg and Mattias Skarin is the most widely-read comparison of the kanban-method and Scrum. Anderson endorsed the work as "very objective," notable given the sometimes heated Kanban-vs-Scrum debates of the period.
The book compared the two approaches analytically rather than advocating for either, presenting them as complementary tools for different contexts. It included a case study showing how a Scrum-based organization implemented Kanban in their operations and support teams. The work helped establish the framing that Kanban and Scrum were not competitors but different points on a spectrum of process prescriptiveness — a position consistent with Anderson's evolutionary-change philosophy.