I reviewed the book a few months ago, and did an interview with Glenn--you can find it online. What impressed me most- apart from a kid getting in the door of A&R Studios and quickly working his way up--to sit by the side of the great Phil Ramone--was Glenn's constant quest for "the magic"- why does music move us, what in the recording process makes it seem more genuine? Tellingly, Glenn describes the huge amount of studio artifice to make a recording sound more "real." Very nice guy, and without the pressure to be "politic" in order to continue making a living in the business, Glenn's insights are not just candid, but benefit from his 2nd career--he's a shrink! (So he has a fair amount of insight into himself and others which gives the book far more depth than the usual name-checking entertainment bio).