Are chess books published by gambit books good for begginers?


Gambit publishes quality chess books. That said, they are generally no better or worse than the many other publishers of quality chess books (e.g., Quality Chess, Everyman, New In Chess, Batsford, etc., etc., to name a few)
Good Chess Books for Beginners and Beyond...
https://www.chess.com/blog/RussBell/good-chess-books-for-beginners-and-beyond