This document provides an introduction and overview of the book "Islam Denounces Terrorism" by Harun Yahya. It summarizes the author's background and intentions in writing the book, which is to explain Islam and refute anti-religious ideologies using evidence from the Quran. The introduction emphasizes that the book aims to guide readers to the truth and abolish doubts, not promote the author's own views. It is hoped the book will help communicate Islam to others and contribute to religious discussion and understanding.