There are 2 Asia Books stores inside the Landmark Plaza, one is on the 1st floor and the other is on the 3rd floor. The store is easy to find if you are coming from the main entrance. If you come by a car, you can get your ticket stamped and the parking id free.

1st Floor, Landmark Hotel, Sukhumvit Rd. (Between Sois 4-6)
Tel. 66-2252-5839, 66-2252-5655  Fax: 66-2251-5993
(Hours: 10.30 am - 7.30 pm)