The SCD bookstore, which includes baseball and football card prices guides, along with book on music, antiques and assorted other categories, is conducting a Season of Savings event now through Dec. 17.
You will find no better deals than during this sale. For instance, the Standard Catalog of Vintage Baseball Cards, 2nd edition (2012), is available for $3.31. Many other items are less than $10, with many under $5.
You won't find a better deal except for maybe a yard sale. Happy shopping.