This was my favorite campaign setting from yesteryear and now that my kids are playing I purchased it againas a PDF for convenience. It's easier to use the books than the original paper books were because of the indexing. The maps, however, are not scanned at the same default scale as each other. It takes a little work to get them to the same size so theyline up with each other. Also, they are difficult to print at a legible scale on most printers.