Review
Ter Haar, who studied with Kramers, has a unique approach to scientific biography: He makes us read the original papers [along with] discussion of the published work and an eludication of these papers... On quantum electrodynamics] and the other subjects on which he touches, [ter Haar] has written a stimulating book that brings Kramers's history-making work even more into focus... Physics Today
Review
The author of this book was the main force in establishing a new mathematical discipline, and he has contributed to its further development at every stage and from every angle. This volume ... is a treasure trove for those who work in this field--teachers, students, and users alike. Its encyclopaedic coverage, due in part to collaboration with other experts, makes it an absolute must.
(
S. Vajda, "Zentralblatt fur Mathematik und ihre Grenzgebiete" )