This book is the one and only book I ever regretted loaning out. My regret though is tempered by the fact that the young brother I loaned it to was stabbed to death just a few weeks later.
The book is by far the most comprehensive written coverage of the proofs advancing the truthfulness of Muhammad (SAWS), the ascendancy, validity, eternality of Islam. The provides from the Bible proofs against the trinity and divinity of Jesus (AS).