Of course it depends on what year it was out because if it is like 2006 or something like that is is probably why it is cheap
Some are used
Amazon is able to buy all or most of the books printed by a publisher. Baby bop :)
Lower overhead than local brick and mortar stores, no face to face customer service, low transaction costs.
because the seller who is selling it wants to.
You can purchase philosophy books and resources at bookstores, online retailers like Amazon, and university bookstores.
You can purchase books on Tarot from Amazon (both physical copy books and Kindle file books), Barnes and Noble (both physical copy books and Nook file books), and eBay.
Hardcover books can be purchased at most bookstores, including major chains like Barnes & Noble and independent bookstores. They can also be bought online from retailers like Amazon, Books-A-Million, and Book Depository.
There are many websites where you can purchase this from cheaply. This is also available on Amazon for $30.89, books on this subject are also available from $19.00.
One can find legal books at most college bookstores or bookstores like Barnes & Noble. One can also find legal books online at websites like Amazon and maybe on Craigslist from a law student.
Cheap puzzle books can often be found at discount stores, dollar stores, online marketplaces such as Amazon or eBay, or at secondhand bookstores. You can also check for sales or discounts at larger bookstores or look for digital puzzle books that may be more affordable.
There are a number of places where one could purchase the For Dummies books. They can be purchase at most bookstores, and also on websites such as Amazon.
Scott Kelby has written a number of books on digital photography and also books on the Photoshop programs. His books can be bought at Amazon and other online bookstores.