This book is a journey to explore principles of aesthetic creativity of elements and details of the various Islamic buildings.The different chapters of the book explain the geometric principles and proportions that the Islamic architect and artist followed in the design and implementation of these elements, details and ornaments.The book contains four chapters:* Chapter one: Architectural elements of mosques. * Chapter two: Facades elements and details.* Chapter three: Interior design elements.* Chapter four: Ornaments and Arabic calligraphy.