This book offers an in-depth study of the philosophical project of the Moroccan thinker Taha Abdurrahman, exploring its creative and innovative dimensions. The author analyzes the fundamental concepts developed by Taha Abdurrahman, such as "Fiqh of Philosophy," "The Spirit of Modernity," and "Ethics." The book highlights the philosopher's attempt to construct an authentic and distinct Islamic modernity. The work serves as a comprehensive critical introduction to understanding one of the most prominent philosophical projects in the Arab and Islamic world today.