Heh
How to improve chess (for 1500 fide rated)

Jeremy Silman's books are good, I wouldn't recommend playing gambits in Classical chess tho. My USCF rating is around 1800

The King’s Gambit is quite playable at your level.
As for books, you might look at http://chessskill.blogspot.com/2023/06/ten-books-to-achieve-1800.html
Hi Guys, I wonder if any of you guys know improve chess for 1500 fide rated, and do anyone here knows a very good gambit against that I can play also can you guys suggest any nice books
Thanks, Friends and see you soon