This document provides an introduction and summary of Syed Muhammad Naquib al-Attas's book "Islam and Secularism". The book explores the contemporary Western Christian background, defines key terms like secularization and secularism, examines the concept of religion and foundations of ethics in Islam, discusses the Muslim dilemma regarding secularization, and calls for the dewesternization of knowledge. The book was originally intended to intellectually prepare emerging Muslims to thoughtfully address the forces of secularization and make necessary changes to thinking still influenced by bewilderment and self-doubt. It emphasizes that the challenge is primarily intellectual in nature and positive resistance requires strengthening knowledge based on truth.