Weakness of Faith is a much-needed book that outlines some of the many difficulties faced daily by Muslims in controlling the constant fluctuations of faith in their hearts. Shaykh al-Munajjid describes the symptoms of such weakness and lists the possible reasons for it. He then goes on to suggest different treatments that we can apply to help overcome the evils that cause our faith to decrease. The author takes us on a crash course in self-awareness and reformation, outlining easy steps to conquer ‘the Satan within our souls’ with clear guidelines from the Qur’an and Sunnah. These techniques, if implemented in everyday life, will help build our faith and strengthen our hearts and souls. Heartfelt and concise, this excellent self-help guide is truly an eye-opener and a simple, subtle means of changing our lives. It illustrates how to cleanse the heart of evil and fill it instead with remembrance of Allah, the Exalted, hence attaining fulfillment and greater satisfaction in this world and the next.