Antique books are the longest running collectable in the world today. People have been building collections of books for generations; even before they were antiques. In their earliest form, books have always been a favorite collectible. Antique books were defined as pre 1800 until some collectors began describing antique books as those over 100 years old. Now that the interest of many collectors has turned to modern first editions which are not necessarily that old or rare the definition of antique books has become a bit more blurred. Antique books are often about, or represent a certain era in history around the world. People buy antique books for many reasons. Sometimes they are trying to buy back a family collection, and sometimes, they are using the books to decorate a home library. As collectors of antique books became more knowledgeable; their interest in the details has increased, in effect causing an increase in prices. What many collectors had considered a hobby eventually developed into a viable intellectual search. Each year book prices to rise, fueled by a rather controlled scarcity in which dealers would withhold copies of titles, so that they could create a demand for certain titles. After the introduction of the Internet in the 1990's, a new medium was available to collectors of antique books for displaying and selling their material. It is estimated that there are seventy-five times as many books for sale on the web, as there are owned by all the major dealers in the world. The broad exposure that the Internet has provided allowed collectors not only the opportunity to easily access resources around the world, but to resell antiques attractive prices. If you are thinking of becoming a antique book collector, know that there is a lot of competition for rare antique boos, but it is very worth it.