This book is great for beginners or people who have made loads of mistakes gardening. It deals more with vegetable gardening than anything else, but it does touch in flowers, fruit trees, vines, bushes, etc.
Easy Gardening 101: 20 Sure-Fire Lessons Guaranteed to Make You a Better Gardener by Pat Stone (Storey Publishing 1998)(635). Good suggestions to improve one's gardening practices. My rating: 7/10, finished 2003.