In this book appropriately titled The Tree of Faith, Shaykh Abdur-Rahmn Nsir as-Sadi discusses this amazing tree, its roots and branches and how to nourish and feed them for excellent growth. He goes into detail regarding the definition of faith, how it increases and decreases, and its amazing benefits. Each section accurately and concisely covers the subject at hand, and nothing is left out. Relying entirely upon the Quran and Sunnah, Shaykh as-Sadi provides a comprehensive explanation of the fundamentals of faith. This work is written in such a way that it is applicable to all types of audiences  the beginner and the expert are included. Throughout the book, the original commentator and translator have both provided explanations within the footnotes that expand upon the points mentioned.