The book "I Missed Prayer" by Islam Jamal is a self-development book with a spiritual slant, aiming to help those who are negligent in prayer to commit to it. The book analyzes the reasons for the difficulty and procrastination of prayer, offering practical advice and realistic steps to overcome the obstacles of devotion and regularity, relying on motivational stories, Quranic verses, and ideas to change the reader's perspective on prayer as a source of tranquility and reassurance, not a heavy burden.