In her 2019 book, Marwa Nizar Yousef explores the profound concept of the 'imaginary system' that underpins Islamic art. This study delves into how Islamic artists moved beyond literal representation to create a unique visual language based on geometric patterns, intricate arabesques, and elegant calligraphy. Yousef analyzes the philosophical and spiritual foundations that shaped this aesthetic, examining how abstract forms convey complex ideas about unity, infinity, and the divine. The book offers a compelling journey into the intellectual and creative world of Islamic art, revealing the sophisticated conceptual framework that gives it its timeless beauty and depth.