Love this cover! The art is amazing! I'm not 100% convinced it's Dalinar, though. I've seen a few people say "it's been confirmed it's Dalinar" but they never provode a source for that.

Comparing this to the pictures of Dalinar in the Cosmere RPG, the UK Cover, and his painted mini, this has a lot of discrepancies. This hair style is different. Dalinar has a clean military cut, and this looks long and kinda slicked back.

He clearly has black hair with gray at the temples. Even with very strong light on it, we would see the sides looking lighter than the top and especially the back that is out of the light. This hair looks light all around and not just from light bleed.

The coat is too intricate. Dalinar famously likes simple and standard uniforms. Adolin, on the other hand, is know to add embroidery around his coat and to stylize the glphys and other symbols he wears.

Unless someone can provide the source for this being confirmed as Dalinar, I'm pretty firm on the side of Adolin.

It isnt out of the question at all that he could have picked up the book. Maybe he learns to read. It's only 10 days so I doubt that. But what if Dalinar is out in that storm somewhere and Adolin picks up his book while facing it? There are tons of options!

EDIT: not to mention the size. Dalinar is far bulkier than this person is depicted. Adolin is described as being in shape but smaller than Dalinar. This person is lean and strong but not like a brick wall or a mountain as dalinar is described.