For over 120 million students here in the United States, the textbook market is a scam. They hate paying $500 for textbooks, and selling back for $100. Since 2009 I have been designing a network system to enable them to buy and sell their own books. Ghismart's system is gets all textbooks information , and set up 30% off everything. because students will rather sell for $70 than $20 to the bookstore, and buy for $70 rather than $100.