One of the best English bookstores in Southeast Asia, though the CentralWorld location might have slightly more specialized sections. Huge travel section, novels, magazines, and maps. Great place to escape the heat and browse for hours

Located on 3rd floor of Siam Paragon mall. Prices are higher than home but the selection is incredible. They have guidebooks for every country and lots of books about Thai culture. BTS to Siam station, connected to the mall. Open 10 AM to 10 PM daily. Free wifi throughout the store