The book "Islamic Ethics with Its Basic Concepts" is the product of a study centered on the treatise titled "Fihrist-i Ahlâk" written by Seyyid Hüseyin Hüsnü Efendi. This book defines and explains Islamic ethics, addresses moral concepts, and explores the ways to attain virtuous character. Holding an important place in the history of Islamic thought, this work contains knowledge that everyone can benefit from.