(1) Real Mathematical Analysis, by Charles Pugh is a wonderful introduction to pure mathematics for a mathematically inclined engineer. The back cover starts li

(1) Real Mathematical Analysis, by Charles Pugh is a wonderful introduction to pure mathematics for a mathematically inclined engineer. The back cover starts like this > Was plane geometry your favourite math course in high school? Did you like proving theorems? Are you sick of memorising integrals? (2) The Man Who Mistook His Wife for a Hat, by Oliver Sacks. I think it's impossible to read this (or a number of other works of Sacks') and not be mesmerized by the workings of the human brain. Disclaimer: I wouldn't call neuroscience my "field of study" even though I did study it.