I've seen the first season of The Expanse. I haven't read any of the books (yet). I expect there to be differences between the book and the TV series, as will happen always.
But do the first season of the The Expanse TV series and Leviathan Wakes, the first book of the series, cover the same period and events?
Or are there events in the book not yet covered in the show?
Or perhaps events in the show taken from the second book, Caliban's War?