For the beginner, my vote's also for the Speer manual. It provides a good amount of "getting started" information that many of the other manuals don't.

Provided you start out with common propellants, you shouldn't need too many references to begin with. Once you start playing with less-common or new propellants, you'll often find that not all manuals include documentation for them. As an example, though Varget is becoming more popular, you won't find it in every manual.

Some information provided can be of relatively little use, particularly anything data-wise that might be influenced by the firearm (velocity, accuracy, etc.) I've one load for .223 that, by the book, should be running at 3009 fps which runs quite safely through my rifle and chronograph at nearly 300 fps higher. I've another load for .243 which is great accuracy-wise in one rifle, but which bombs in another.

The one tool I highly recommend you consider as a new reloader is a chronograph. Without it, you're only hoping to see the numbers your manual suggests, and you're otherwise oblivious to inconsistencies within your reloading processes that result in erratic (you'll be surprised) performance in your firearms. Once you start isolating out and correcting these variances, you'll see your group sizes shrink.