The Happiest Man on Earth
- Publisher : Macmillan Australia (28 July 2020)
- Language : English
- Hardcover : 208 pages
- ISBN-10 : 1760980080
- ISBN-13 : 978-1760980085
- Dimensions : 14.4 x 2.2 x 21.6 cm
- Best Sellers Rank: 2 in Historical Germany Biographies