I have three books, which I think are all a must have, if you are a team serious about mastering the building of Lego Robot and Programming an EV3, especially so, if you are a new team.
The Art of Lego Mindstorms EV3 Programming by Terry Griffin
The Lego Mindstorms EV3 Idea Book by Yoshihito Isogawa and
The Unofficial Lego Technic Builder's Guide by Pawet Sariel Kmiet
In my own experience coaching teams, I found that these books elevated the team in their skills on how to build a robot for a challenge and how to program it to do the missions on the table. So, I strongly recommend for anyone, who is serious about learning and winning.
All three books, I have are like new and are up for sale. I live in Herndon, VA and if you live close by and interested in buying them for a discounted price, please reach me directly.