In this insightful work, Salih Ozdemir explores the profound theological concept of ignorance and its significant impact on the validity of acts of worship. Published in 2006, this 216-page book delves into Islamic jurisprudence to clarify when ignorance is a valid excuse and when it nullifies a religious deed. The author meticulously examines various scenarios, providing a clear framework for understanding this complex issue, making it an essential read for students of Islamic sciences. The publication features an artistic cover design.