Leonhard Euler And His Friends

This particular book is anachronistic and not very well-translated. However, I seem to be developing a fondness for books of this nature, so perhaps I like it, warts and all. It does not function as an excellent, English-language biography of Euler, but it does function as a collection of some excellent anecdotes, the broad brush-strokes of his life, and some facts about the people he corresponded with.