THE BOY WHO INVENTED TV: THE STORY OF PHILO FARNSWORTH, by Kathleen Krull, ill. by Greg Couch (Knopf, 2009). This picture book biography tells the story of Philo T. Farnsworth, credited with inventing, among other things, the first electronic television (U.S. Patent No. 1,773,980).
THE BOY WHO INVENTED TV describes Farnsworth's modest upbringing in Utah and his flash of inspiration while plowing a potato field when he was 14 (which he subsequently described to his science teacher) that led to his development of the first working "image dissector" at age 21.
With illustrations that provide a period "feel," THE BOY WHO INVENTED TV is an excellent introduction to a little-known piece of television history.