This manual covers "A Guide to Feynman Diagrams in the Many-Body Problem" by Richard D. Mattuck, published by Dover Publications. This edition, released in 2012, delves into complex physics concepts including Feynman diagrams, quasi-particles, Fermi systems at finite temperatures, superconductivity, vacuum amplitude, Dyson's equation, and ladder approximation. It is designed for nonspecialists seeking a comprehensive understanding of these advanced topics.

The purpose of this guide is to demystify intricate areas of many-body physics. It aims to provide readers with a clear and accessible explanation of theoretical frameworks and mathematical tools essential for advanced study and research in the field. The text is structured to facilitate learning and comprehension, making it a valuable resource for students and researchers alike.