Spread Certificate · No. HIS-01334
This certifies how far it spread
The Psychology of Money
Morgan Housel (author); Harriman House (publisher) ·September 2020 ·seeded onRetailthenOpen webAudioPressYouTube
Spread Score
13
Niche
Verified independently
Verified
43.1K sold
US paperback cumulative through December 5
Publishers Weekly / NPD BookScan
Verified
#2
ABA indie personal finance, eight weeks to April 4
American Booksellers Association
Verified
5.7 years
Seed to milestone, Sep 8 ’20 to May 14 ’26
Verified
5 platforms
Started on Retail
Claimed, not audited
Claimed
10M sold
Worldwide sales, publisher’s current lower bound
Per Harriman House
Claimed
8M sold
Worldwide sales, publisher claim in October 2025
Per Pan Macmillan
Claimed
7M sold
Worldwide sales, publisher claim, lower bound
Per Harriman House / LinkedIn