Buy Or Do Not Buy? "A Guide Book Of US Currency, 6th Edition"

When you say, it has become very useful to me, what exactly do you use the book for?

I write notes in all of my paperback guides, so typically I skip getting an edition because the information doesn't change that much, and I don't want to transfer all of the notes. I do not use paper money guides for pricing, instead I research pricing from current auction results and trends. The different guides I own usually cover different topics. I have a guide just for WEB notes, and a guide just for ERROR notes, I have a guide just for Florida Obsoletes, and so on.

The guide you are referring to was my first purchase when I first started collecting US paper money....although mine was the 3rd edition. I was collecting small size, modern star notes and couldn't understand why a series 2004A $10 San Francisco star note was selling for so much on ebay, when the book said it was worth $20. Unless the guide has changed, which I doubt, your guide does not break down runs within districts. Your guide lumps all the star note runs for a district into one amount. Your guide didn't have the detail I needed, and I eventually bought the Standard Guide to Small-Size U.S. Paper Money which is far more detailed and breaks down each series better. Later I took it one step further and bought Robert Azpiazu's Collectors Guide to Modern Federal Reserve Notes, Series 1963-2009. The detail in Roberts guide is amazing.

I guess it all depends on which area of the hobby interests you.

Robert's book is very in depth regarding mules, print runs star notes for federal reserve notes

Thank you all for the input, now I just need to figure out which direction I want to go. I think I'm trying to learn too much, too quickly. As of now the majority of my paper currency collection has come from circulation, like Fancy Serial Numbers, modern Star Notes, a few Silver Certificates, Two Dollar Bills. So I will start with what I have and become more familiar with Star Notes and Silver Certificates at first, so I will consider adding those specific guides. Information on the different district production runs for Star Notes seems to intrigue me as well as the different reasons those Notes are even produced. Well look there, I think I found a direction.