![An Iron Will, by Orison Swett Marden](/content/images/size/w800/2024/04/Copy-of-Book-Covers.png)
An Iron Will, by Orison Swett Marden
This classic book from the founder of SUCCESS Magazine was first published in 1901, and helped launch the entire field of self-improvement. It's short, wildly inspirational, and will arm you with the ambition and the willpower needed to keep going no matter what.