Lots of books, here's a way to enjoy them! Just my suggestion, I found this to be a great way to get into the overall Cosmere.
- Mistborn Trilogy 1
- The Final Empire
- The Well of Ascension
- The Hero of Ages
- Elantris (This is one of his first books, it has a noticabley different style, but the story is fun and has some Cosmere stuff for later)
- The Emporer's Soul: Elantris Novella
- Stormlight Archive #1 : The Way of Kings
- Stormlight Archive #2: Words of Radiance
- Sixth of Dust - Cosmere novella, doesn't really need to be read in any order
- The Alloy of Law - This is a novella introducing Mistborn Trilogy 2
- Mistborn Trilogy #2
- Shadows of Self
- Bands of Mourning
- Not out yet!
- Secret History - This has huge spoilers across the Cosmere, but you've now been prepped with this guide!
- Edgedancer - Stormlight Novella
- Stormlight Archive #3: Oathbringer
- Dawnshard - Stormlight Novella
- Stormlight Archive #4: Rhythm of War
Read these in any order, throw them in between Cosmere books, whatever you want!
- Reckoners - fun young adult series
- Legion - Novella series
- Legion: Skin deep
- Shadows for Silence In the Forests of Hell
- Infinity Blade: Awakening
- Infinity Blade: Redemption
- Rithmatist - Super young adult, but its a fun read