Title: The Book of the Law
Content: Cornelius, J. Edward, et al. 
Title: The Book of the Law
Content:  The Book of the Law Vondel Park Audio Book 2003 The Book of the Law was first published in 1909 as part of ΘΕΛΗΜΑ, a collection of the holy books of Thelema. ΘΕΛΗΜΑ was privately published in London by the A∴A∴ as a three volume set, with The Book of the Law appearing in Volume III. It was next published in 1913 as part of The Equinox, Volume I, Number X. In both of these early editions it is titled Liber L vel Legis. Subsequent published editions include: Liber AL is also published in many books, including: And at least one out-of-print audio version common on eBay: 
Title: The Book of the Law
Content:  Liber AL vel Legis, commonly known as The Book of the Law, is the central sacred text of Thelema. Aleister Crowley said that it was dictated to him by a beyond-human being calling himself Aiwass. Rose Edith Kelly, Crowley's wife, wrote two phrases in the manuscript. The three chapters of the book are spoken by the deities Nuit, Hadit, and Ra-Hoor-Khuit. Through the reception of the Book, Crowley proclaimed the arrival of a new stage in the spiritual evolution of humanity, to be known as the "Æon of Horus". The primary precept of this new aeon is the charge, "Do what thou wilt shall be the whole of the Law." The book contains three chapters, each of which was alleged to be written down in one hour, beginning at noon, on 8 April, 9 April, and 10 April in Cairo, Egypt, 
Title: Book of the Law of the Lord
Content:  book is the original Torah. Strang did not claim that his 1851 edition was the complete Book of the Law mentioned in the Hebrew scriptures, but rather that it contained only selections that were pertinent for running the church and kingdom in the modern era. His 1856 expanded edition contains the same translation as the 1851 edition, but with added essays written by Strang and several modern revelations. Strangites also identify the Book of the Law with the "Stick of Judah" mentioned in. While other Latter Day Saint sects generally view the "Stick of Judah" as the Canonical Bible, Strangites assert that it refers primarily to this lost book.
Title: The Law is for All
Content:  The Law is for All is a collection of Aleister Crowley's commentary on The Book of the Law, the central sacred text of Thelema. It was edited to be a primer of sorts into Crowley's general interpretations about the sometimes opaque text of Liber Legis. For this reason, the book omits many of the more complex qabalistic explanations that lean heavily on an understanding of gematria and The Tree of Life. As the original editor, Louis Wilkinson, wrote in his introduction (p. 17): The aim of the Commentary on the Book of the Law is to guide the reader along the path of the discovery of his own true will, in accordance with which, and only in accordance with which, he can rightly think and act. This is why "Do what thou wilt shall be the whole of the Law." Only by doing so will you be shown your own true thought and life. Crowley's long expository was written prior to the final Comment that now is appended to The Book of the Law.
Title: The Book of the Law
Content:  of which only 11 copies were printed, and signed it as Ankh-f-n-khonsu (lit. "He Lives in Khonsu"—a historical priest who lived in Thebes in the 26th dynasty, associated with the Stele of Revealing). It advises the reader that the "study" of the Book is forbidden and states that those who "discuss the contents" are to be shunned. It also suggests that the book be destroyed after first reading. Crowley later tasked his friend and fellow O.T.O. member Louis Wilkinson with preparing an edited version of Crowley's commentaries which was published some time after Crowley's death as The Law is for All.
Title: Book of the Law of the Lord
Content:  The Book of the Law of the Lord is a sacred book of scripture used by the Church of Jesus Christ of Latter Day Saints (Strangite), a sect of the Latter Day Saint movement. It is alleged to be a translation by the Strangite prophet James Strang of the brass Plates of Laban, which were originally acquired by Nephi, a leading figure in the early portion of the Book of Mormon. Strang claimed to have translated them using the Urim and Thummim, which Mormons believe was used by Joseph Smith to translate the Book of Mormon from ancient gold plates. Strang's followers believe that while the Book of the Law was lost 
Title: Josiah
Content:  Law" was an early version of the Book of Deuteronomy, but recent biblical scholarship sees it as a largely legendary narrative about one of the earliest stages of the creation of Deuteronomistic work. That is, historical-critical biblical scholars generally believe that the "Book of the Law"—an early predecessor of the Torah—was invented by Josiah's priests, who were driven by ideological interests to centralize power under Josiah in the Temple in Jerusalem. William G. Dever, for example, argues that the Book of the Law was actually composed by orthodox Yahwist priests, who attributed it to the legendary figure of Moses and then hid it in the Temple, where it would be dramatically discovered; in this way, a 
Title: The Book of the Law
Content:  every point of morality. The third chapter seemed to me gratuitously atrocious." Shortly after making a few copies for evaluation by close friends, the manuscript was misplaced and forgotten about. It would be several years before it was found, and the first official publication occurred in 1909. "The Book of the Law annoyed me; I was still obsessed by the idea that secrecy was necessary to a magical document, that publication would destroy its importance. I determined, in a mood which I can only describe as a fit of ill temper, to publish The Book of the Law, and then get rid of it for ever."
Title: The Equinox of the Gods
Content:  The Equinox of the Gods (ISBN: 1-56184-028-9) is a book first published in 1936 detailing the events and circumstances leading up to Aleister Crowley's transcription of The Book of the Law, the central text of Thelema. Included in The Equinox of the Gods are a facsimile of Crowley's handwritten manuscript of The Book of the Law, personal diary extracts, and a full color reproduction of the Stèle of Revealing.

Question: Who is the author of The Book of the Law?
Answer: Aiwass.
Aleister Crowley.