I love this book! I am a newcomer to Nemadji Pottery, and this was just what I needed. There are marking examples to help you date your pottery. There are many photographs to help you with the factory number, which ties in nicely with the price guide (great for insurance purposes)! I love history and trivia, so the parts on Nemadji being a recycling company since its inception was great! The book has a very easy to read style which makes it easy to not want to put it down, but easy to return to when you have to stop. Thank you for a great source of information!