Some of the mathematicians agree that reading biography (or more specifically, math-autobiography, scientific-biography) gives lot of inspiration for working; and I am one of them.
One book which I know is: An Automathography by Paul Halmos.
My request is: Can you recommend few more similar types, that is, auomathography, or biography of mathematicians ?
Thanks,
Men of Mathematics By Eric Temple Bell
Man who knew Infinity By Robert Kanigel
Both are my best of best books .You must read them