"ABCs of Reloading" is good. Be aware that there are differences between editions. I think the most recent is the 9th edition. Different editor from the 8th edition, but the content is not radically different.
The Nosler manual is interesting and informative, especially if you use Nosler bullets. The Lee manual is a good read about the evolution of that company's reloading products. Wish I had bought that before I started buying reloading equipment. I also have one of those loosely bound, photocopied collections of load data for .223/5.56. It's OK, consists of photocopied charts from most of the major bullet makers.
If you reload for that caliber, there's another book that's worth getting: "AR-15 Ammunition Reloading: A beginner's guide to reloading ammunition for the AR-15 Rifle" by Christopher Ohland. I found it on Amazon.com, It is devoted only to reloading .223, and is very detailed. Helped me a lot when I got started. It focuses on using 69 gn SMK and Varget . I followed most of his recommendations and turned out useable ammo. (Ohland had an earlier version, called Rifle Cartridge Reloading, that is basically the same. the latest, 2010 edition has some refinements.)
After getting the hang of the 69SMK/Varget recipe,, I started exploring other powders and bullets, using various sources, including the annual Hodgdon guide and any on-line site or post I could find. Still learning, and happy to do it rather than pay today's prices for factory loaded ammo.