The discussion centers around finding comprehensive resources for integration methods and special functions, particularly for applications in Quantum Field Theory (QFT). Participants highlight the importance of Bessel functions and other special functions, noting that if a problem isn't addressed in the Ryzhik table, it likely cannot be solved analytically. Ryzhik is considered nearly complete for integration methods, but the idea of a single definitive "Bible" on the subject is challenged, as no single book can encompass all necessary knowledge. Recommendations include the "Handbook of Mathematical Functions" by Abramowitz and Stegun, which is praised for its extensive collection of methods and results, and "Inside Interesting Integrals" by Paul J. Nahin. Links to free legal copies of the Abramowitz and Stegun handbook are also shared, emphasizing its accessibility.