As I’m sure you know, the blues are the basis for literally thousands and thousands of songs, particularly in jazz, fusion, rhythm & blues and rock, but also in many many pop songs you don’t normally think of as “the blues”. That’s because the chord structure of the blues is basically the same as the chord structure of songs that use the primary chords: I, IV, and V. Of course the blues adds a 7th to those primary chords, but the basic structure remains the same. Watch this short video and you’ll get the idea:

For a course on playing the blues, please see Playing Blues, Boogie, & R&B