Should I read “The first world war by Martin Gilbert” or “A world Undone by GJ Meyers” as beginner trying to learn about the great war.

I’m starting to take interest in the history of the first world war, and looking for a book containing a comprehensive history of the entire war. I did some research and found these two books. Which among them would be better, or, are there better books about ww1?

by Salt_Consequence_737