Dava Sobel and William J.H. Andrewes.
The Illustrated Longitude (The True Story of a Lone Genius Who Solved the Greatest Scientific Problem of His Time).
The original book, Longitude, was published in 1995 by Walker and Company, and reviewed by John Dusel in Cook's Log on page 1308, vol. 19, no. 3 (1996).
The illustrations enhance the story, which makes this version worth having as well.
Originally published in Cook's Log, page 1571, volume 22, number 1 (1999).