Reluctant Genius

Author: Charlotte Gray
Published: 2006
 

Full title is Reluctant Genius: Alexander Graham Bell and the Passion for Invention. Thorough biography with particular emphasis on Bell's personality and temperament, and his relationship with his family and his wife.
 

Rather light on technical information, though that is not a criticism, just an observation. Of course, should be read in context with The Telephone Gambit for a full disclosure of Bell's probably theft of secrets from Elisha Gray.