'Roy is well-known for useful scholarship. This book continues his record.' Robert E. O'Malley, University of Washington
'I often turn to Ranjan Roy for his wide-ranging works on series, both historical and contemporary. His writing is meticulous and a pleasure to read. These volumes can be used to engage undergraduates in the exploration of mathematics through its history and as a resource for anyone working in mathematics.' David M. Bressoud, Director, Conference Board of the Mathematical Sciences
'an impressive source book with original materials from the creators of calculus (with excursions into algebra and number theory) from all over the world.' Pelegrı Viader, MathSciNet