check chessable. its very good for openings
Any books i should read for the reti's opening

yes i love chessable. it has helped me so much. it is free and there are a bunch of free courses. i have bought some of there courses and love each one.

For an actual book, click this link. It's made in 1998 but it should help you get started
I'm trying to study the retis opening
is there any books that will help me study it
thanks