If you ever used Laplace transforms to solve differential equations, that is Heavisides work too.

Good book: http://www.amazon.com/Oliver-Heaviside-Electrical-Genius-Vic...

I've read that book, it is very good. A fantastic story/subject, though probably not for a general audience, just those interested in a detailed history of Heaviside and his work. It's nice to see a well-written 'technical' history book - so often such books are written by someone who doesn't really understand the subject - this is an exception.

You are mistaken about Laplace Transforms - Heaviside used a different method which was rather ad-hoc - sometimes it works, sometimes not. For the same problems, we now use Laplace Transforms instead, because they are better/cleaner.

Heaviside was somewhat written out of history because he was considered a crank during his lifetime. His reputation is basically rehabilitated these days, but it's only physicists/mathematicians/engineers who have heard of him.

His name was all over the physics textbooks, probably even more frequently than Maxwell, so he is not entirely forgotten.

Bill Bryson mentions Heaviside in his latest book The Road to Little Dribbling.