From the reviews: "Kromer provides a more complete historical study of category theory and its applications from the beginnings to about 1970. ... It caught the attention of people interested in conceptual and philosophical issues ... . I recommend Kromer's work highly to anyone who seeks to gain an understanding of category-theoretic mathematics ... . an interesting contribution to the historical philosophy of mathematical practice ... . the book is more successful as a history. It is well produced, and the English is clear enough ... ." (Jose Ferreiros, Zeitschrift fur Geschichte der Wissenschaften, Technik und Medizin, Issue 1, 2010)
