Author : C.S.Lewis
What is it about : A book on religious faith and human nature. In the form of a series of letters, almost always beginning with "My Dear Wormwood,..." and ending with "From Your Affectionate Uncle...", Screwtape the supervisor or mentor (the Uncle) from Down Below (Hell), taught his apprentice Wormwood, who went to work after Training College, to tempt (Wormwood The Tempter) his Patient (a young man) to his ultimate undoing, corruption, downfall and damnation - via means and vices through the strategies, policies, tactics and methods devised by "Our Father Below", a.k.a. The High Command, often by exploiting the human weaknesses - vanity, pride, prejudice, gluttony, cowardice, patriotism, misplaced love and so on.
A great quote from this book, "...humans are amphibians, half animal, half spirit...";and for your amusement, a few of the supporting entities from Down Below, which Wormwood received to perform his job - the Intelligence Department, the Infernal Police, the Philosophical Arm, the Training College, House of Correcting for Incompetent Tempters; also Woodworm's colleagues-at-large (other skillful Tempters), similarly in active Service, roaming in our world to execute their respective demonic assignments, were Slubgob (who incidentally, later being awarded with the administrative post of Principal of the Training College for young Tempters) and Glubose - think field agents Double-O-Seven, Double-O-Six and so on, all run by their Master Screwtape at the background where their "Patients" souls (that's the general weak-willed public) are to be turned, burned or bought.
Some thoughts after having read the book : The originality and novelty of the book wore off soon after the beginning five or six "Letters", the book then took on a rather monotonous and replicated structure and basically, each Letter exploiting a different human weakness - the book thus becoming less intriguing and rather predictable; amusing and good literary writings, yet to the non-religious types, rather boring.
Would I recommend this book to you : If you are interested in reading this ingenious work with novel human perspectives, passage structures and quasi-Cold-War mentality and quasi-intelligence organisations (think MI6), by a religiously-committed author, then IMHO, quite a hard slog ahead for you, I'm afraid. Spoiler alert here - for your information, after applying all the skills and trickery learnt at the College Below, Wormwood failed in his attempt to corrupt and capture the soul of his Patient.