Book 1

Thomas Edison

by Hourly History

Published 8 March 2017

Book 2

Walt Disney

by Hourly History

Published 7 February 2018

Book 3

Henry Ford

by Hourly History

Published 21 June 2017

Book 4

John D. Rockefeller

by Hourly History

Published 25 October 2017

Book 5

Andrew Carnegie

by Hourly History

Published 7 November 2018