Magick Without Tears consists of a series of 80 letters to various students of magick & was the last book written by English occultist Aleister Crowley. Originally to be titled Aleister Explains Everything, the letters offer his insights into both magick & Thelema—Crowley's religious & ethical system—with a clarity & wit often absent in his earlier writings.
The individual topics are widely varied, addressing the orders O.T.O. & A∴A∴, Qabalah, Thelemic morality, Yoga, astrology, various magical techniques, religion, death, Spiritual visions, the Holy Guardian Angel, & other issues such as marriage, property, certainty, & meanness.
This book is considered by many as evidence that Crowley remained lucid & mentally capable at the end of his Life, despite his addiction to heroin (prescribed for his chronic emphysema). Perhaps Crowley's most notable contribution to the occult studies, defining magick for the 20th century, is found in the first chapter of this book, "[Magick] is the Science & Art of causing Change to occur in conformity with Will."