Early United States Copper
The Red Book, by R.S. Yeoman, is one of the best researched books on the market for rare, and modern coins, but it has its limits. It is like a field guide to a national park, it gives you an overview of the coin market, but if you really want to learn about what you are getting into, a more in-depth books might help. If numismatics is a wildlife park, then it is a great field guide, it is big enough for an informative section at the beginning of each series, but also small enough that you can take it pretty much anywhere. I only use it for quick access to mintages when buying coins I do not know much about, but deeper research into a certain series provides better knowledge, and leads o less mistakes, The Red Book, given that it is published almost a year before it's date, and the research was done months before, it is almost always outdated, many coin dealers have told me to buy them only every three years, and that you will get the best picture then of the coin market, although they prefer the green and grey sheet. A nice, small reference book is all I would describe it as. Many books are better for the intermediate collectors and advanced types, and it does not go into much detail about errors, types, or varieties. When I first got my Mega Red Book, I was surprised to see all of the things left out of the regular Red Book. I agree with The coin student, is that it does not really give a price different between slabbed, and not slabbed, leading to some confusion to new collectors. Everyone should have it, but do not go strictly on this book, expand your knowledge, and your library.