Bookhead works like this:Sell a book in your brick & mortar store. Your point of sales processes the transaction and updates the inventory. Bookhead downloads your inventory from your point of sales and enhances the inventory with bibliographic data, then dispatches your products where ever you sell books online. Bookhead syncs your inventory to your online store, so you don't have to worry about your inventory anymore. Your point of sales manages your in-store transactions and inventory.