“Perfect and Amicable Numbers” by Elena Deza is a comprehensive textbook in the subject area of Mathematics, specifically focusing on Number Theory. Published by World Industries Scientific Publishing Co Pte LTD in 2023, this hardcover book delves into the world of perfect and amicable numbers. With 437 pages, this English language publication offers a detailed exploration of these intriguing mathematical concepts. As a valuable resource for students and professionals alike, this book is a must-have for those interested in delving deeper into the realm of number theory.