[robin2]

"Influential" can be tricky to pin down, but a couple of books that made a big impact on me at a certain age were "Prometheus Rising" by Robert Anton Wilson and "The Muse in the Machine: computers and creative thought" by David Gelernter. (The latter arguably counts as a technology book, since it's supposed to be about AI, but it's more to do with psychology and literature.)

More recent sorta/kinda philosophy: "The Craftsman" by Richard Sennett; "From Novice to Expert: excellence and power in clinical nursing practice" by Patricia Benner; "The Craft of Thought: meditation, rhetoric, and the making of images, 400-1200" by Mary Carruthers.

I also like to think that "Asterix in Britain" by Goscinny and Uderzo had a formative influence on me...