How Euler Did It, by Ed Sandifer
How Euler Did It is an online MAA column, written by Ed Sandifer of Western Connecticut State University from 2003 to 2010. Each article examines a specific work or concept developed by Leonhard Euler, with the topics ranging from number theory to geography to fluid mechanics.
The Euler Archive, in collaboration with the MAA, hosts the article collection for the How Euler Did It series. The series was published in two volumes, both volumes are available from the MAA: How Euler Did It (2007), How Euler Did Even More (2014).

