Hi!
I've just gotten back into the hobby last year, and collect US stamps. By chance I read that the US Post Office puts out a Stamp Catalog each year - which was a total surprise to me.
I bought an edition on
ebay for $10 and it just arrived. The title is "The Postal Service Guide to U.S. Stamps" 34th edition. The book is 11x9, 355 pages, and gives an overview/specs/pic of each different US stamp, right from day one.
I also have a Scotts Specialized US Catalogue, and this makes a nice companion to it.
Ha, I can't believe I've never heard or seen one of these before....