Many bridge books have been written over the years. The one judged to be the best of all time is 'Why You Lose at Bridge' by S.J. Simon.
Even Goren, himself, in his forward to the book says that, not only weaker players can benefit from ift but so can the more experienced.
Although bridge players don't always lose, they seldom win as often as they would like or even as often as they should. "Why You Seldom Win at Bridge' aims to put you in the winner's circle more often. Observe a good player in action for any length of time and you might not see many spectacular plays, but you'll also see very few mistakes. The better players make far fewer than we mortals. Consider tennis for a moment. The winner will almost always be the player who makes the fewest unforced errors. The same applies to bridge. Make fewer mistakes and win more often. It's the players who make the same blunders, time and time again who seldom win, and then bemoan their bad luck or blame the bridge gods. Covering those little things in the bidding, declarer play and defence that too may players mess up , is the thrust of this book.
The game of bridge has changed a great deal in recent years. This book will help you with those little things that you aren't doing well or aren't doing at all.
It's a win/win situation.