Baseball cards originated in the late 1800s in the United States and were created as a way to draw fans into America's newest sport. Generations of young boys have spent countless hours collecting and trading their favorite cards and baseball card prices can help determine the value of these prized collections. Baseball card prices reflect current market values for most cards that have been produced in the past 100 years. Whether you are a long-time collector or just starting out, the vast inventory of baseball-related merchandise on eBay is a home run. Baseball card price guides are available for several well-known card manufacturers, including Topps and Becket, and list card values by year and player name. Baseball card price books are offered in paperback and hardback as well as vintage and recent editions. These books also help you to learn the process of grading a card, which is a critical step in configuring its value. Baseball card prices are not only useful in discovering the value of your current cards, but aid collectors in future purchases as well.