“This book takes a broad approach to reverse mathematics, emphasizing connections to computability theory and Weihrauch analysis. It will serve well as a text for courses in reverse mathematics and as a reference for researchers in the area.” (Jeffry L. Hirst, zbMATH 1555.03002, 2025) “Dzhafarov and Mummert's book provides a systematic introduction to new developments in reverse mathematics based on a computability-theoretic approach … . This book is a valuable reference for students and researchers working on reverse mathematics as well as otherbranches of mathematical logic.” (Huishan Wu, Mathematical Reviews, September, 2023)