"Mr. Bloomfield's Orchard" - a fun book about fungi from a mycologist with a solid sense of humor.
"On the Move" - Oliver Sacks's biography. Insightful and uplifting, especially if you enjoy writing.
"Ready Player One" - a dystopian cyber thriller. Reminded me of Snow Crash. Good stuff.
"The Last Place on Earth" - a good (if labored) summary of the races to the north and south poles and their geopolitical impacts.
"Zen and the Art of Motorcycle Maintenance" - been on my list for years. Long but good.
"Steve Jobs" - needs no introduction. Got me interested in Isaacson's other books.
"Hallucinations" (Oliver Sacks) - insightful analysis of the prevalence and for-reaching effects of hallucination. It's a lot more common (and puzzling) than most of us realize.