A wise man once said: "Whoever knows how to read the Kabbalah, has a key to understanding the world." The necessity and opportunity to once again speak of the Kabbalah, considering the vast amount of existing works on the subject, finds for me only one motivation: to present it in a clear and linear way, useful in providing basic elements to at least understand what it is, eliminating all that existing corollary of magic and occultism that distort it. The existence of numerous and complex treatises ends up confusing those who approach it with curiosity. The reason for my writing, therefore, is precisely to clarify with a few essential elements, without flights of fancy, what the Kabbalah is. Franco Micalella is passionate about the study of religions and the Kabbalah. This is his second book in English after "Judaism, Christianity, Islam: God and the Three Monotheistic Religions."