The main reason to workout abs is because strong abs stabilize your lower back and shield you from injury but as a side benefit a 6-pack looks great!
Nutrition is key to getting abs! I cover the nutrition basics on my website, if thats not detailed enough for you I have reviewed and recommended some excellent books:
Anyone can be healthier, have more energy, sleep better, and feel better about themselves through bodybuilding. Bodybuilding doesn’t have to be expensive or take a lot of time, gyms are great but home workouts can save you time and money. A cheap dumbbell set from a garage sale or walmart is all it takes to get started with your home workouts.