What you have is an extremely valuable work by the Reviver of Islaam in his time, Imaam Muhammad Bin ‘Abdul Wahhaab (rahimahullah). Usooluth Thalaatha should not be confused with Thalaathatul Usool, which is a well known book by the same author which goes into more depth and detail on the very subject matter of this book. This book is a summarized version of that bigger work (Thalaathatul Usool). Usooluth Thalaatha due to its size and simplicity is suitable for children and beginners. This small yet tremendous work covers those basic and fundamental principles that every Muslim man, woman and child must know. It covers those very questions which each and every person will be asked about in the grave.
That which sets this book aside from many of the works which may be classified as Islaamic literature; is its relentless pursuit in mentioning the proofs from the Qur’an and authentic Sunnah, for each and every point.
Regarded as one of the most important books when learning the belief system in Islaam, Shaykh Muhammed ibn Abdul Wahhab delivered concise yet extremely beneficial treatise dubbed as 'usool at-thalathah' in Arabic.
This book is extremely important to be read and to ponder upon the evidence of: 1. Who is your Lord? 2. What is your religion? 3. Who is Prophet Muhammed (peace be upon him)?
Indeed the treatise offers excellent answers with proofs to the above questions.
I listened to this book on Spotify, which was accompanied by the in-lecture commentary of Moosaa Richardson, an Islamic scholar of sorts, who also read the Explanation of the Three Fundamental Principles by Muhammad ibn al Uthaymeen. In and of itself, this book offers a very authentic insight how Muslims view and practice their faith, what they think about the West and what they falsely call the polytheists (Christians). Richardson provides some good commentary on the subject and does not shy away from the more fundamental aspects of his religion. Probably the most honest and challenging book on Islam I have read so far, in that it's the first time I've been told I will go to hell for praying to Jesus Christ and Our Lady. Which is not to say my Christian faith was in any way actually challenged - rather, I mean that this book made me reflect more deeply on such things as the Catholic devotion to Mary (worship of Jesus, as God Himself, needs no further explanation here - either you believe He is God and it is not idolatrous to worship Him, or you do not). Hell, even the Protestants share the Muslim aversion to Catholicism and its wealth of Saints, medals, scapulas, miracles and such. While I do understand and indeed admire the staunch devotion to God alone that the Muslims live by, and do wish us Christians in the West were more like them in resisting the corrosions of modern liberalism, I do think they - along with all others - misunderstand what the Marian devotion is really all about, and that nothing is ever actually worshipped apart from God Himself, as one prays to the saints (something I actually don't do anyway) and the Holy Virgin merely as interceders, or more worthy representatives, to God.
This is an incredibly important book for any individual within the fold of Islam. Read it thrice, will read it many more times in the future. It, for me, not only served as an incredibly important source of knowledge concerning the three questions asked in the grave but also served as a 'refresher' of faith. I read it from time to time to remind myself of what I stand for. In this world of deviances and distractions, it is crucially important to remain fixated upon these 'three fundamental principles'. Things can go differently for many individuals, therefore, it is necessary that one retires back to the crux of the matter to remind themselves of who they are and who they must be.