Under the Bar is more of a motivational book, not really much to do with actual lifting.
Practical programming isnt really anything special, Its great if your new and need help programing, but 5/3/1 is better.
Supertraining by Dr. Mel Siff is probably the best book on weight training period. I would recommend this book to ANY lifter.
Never Let Go by Dan John is also a great book on training philosophy.
Starting Strength and 5/3/1 + Supertraining = A bad ass lifter. So thats my recommendation.