"Mathematics and the Historian's Craft" is a scholarly book that explores the unique connection between mathematics and the discipline of history. Written by Kenneth Ownsworth May, an influential mathematician and historian, the book features a collection of 12 outstanding contributions based on the Kenneth O. May Lectures. These lectures were delivered at the annual meeting of the Canadian Society for the History and Philosophy of Mathematics. The authors of these contributions approach the history of mathematics from various perspectives, pursuing May's vision of a synthesis of mathematical and historical thinking. The book highlights the different approaches historians take in their work and discusses the development of mathematics as a discipline over time. It is a valuable resource for anyone interested in the history of mathematics and its impact on modern mathematics.