Drawing on the soundest of sources- the Qur’an and the narrations of the Prophet Muhammad, May Allah blesses him and grants him peace. The Egyptian scholar Mustafa Ashour has complied a much-needed book that avoids the pitfalls of incredulity and superstition and presents a balanced clear-cu description of the Jinn, their properties and domain. This book is indispensable to all those who seek a sound Islam, of which belief in the Unseen is an integral part. And, not least, it provides clear guidance on protecting oneself from any dangers that might be incurred from the realm of the unseen through wrong action or malicious intent.