This is the official season 1 one amazon link
There is a season 2 one as well, which I don't have (more a lack of shelf space on my part than anything to do with the book)
It's a pretty beefy coffee table book, filled with concept art and sketches from the show. If it's eye-candy you're after, it's definitely worth a look.
All The Art of Star Wars books are all great, I have the Mandalorian season 1, as well as all the Sequel Trilogy (TFA, TLJ, RoS) and Rogue One and The Phantom Menace ones. And still looking to pick up Mando season 2 and Solo.
Really nice treasure troves of Art. The Rogue One one has a few nice pics of Jeddah and some market stalls, and the sequel ones also have a few interesting location and terrain pics, but like Zemjw said all are mostly character designs, they do all show some plot and design points that have later been abandoned, some of which are quite interesting.