Jan Foulke, '6th Blue Book of Dolls and Values', was copyrighted in 1984, by Hobby House Press. The 6th Blue Book contains information about both antique and modern dolls. It contains the values as they were in 1984 in 386 pages. The blue books are collectibles in their own right. This book has numerous color and black and white photos and information on collecting dolls. The ISBN numbers are ISBN 10: 0875882285 and ISBN 13: 9780875882284. Pre-owned, in excellent condition, has slight tear on cover and a few pages with folds, but all pages are intact.