Nepali friends of mine have just opened a delightful bookshop called "Quixote's Cove" which is in the grounds of the New Orleans cafe in Jawalakhel, Kathmandu. If you go there you'll find a superb collection of classics and best sellers concentrated into a few shelves and a conducive environment to sit, relax and browse for a while. The proprietor, Pranap Singh, also knows his books very well and is well placed to give you a recommendation or two.
I am very happy to give the bookshop a well-deserved plug as Pranap and his friend Abinash Pradhan were kind enough to commission their logo from Himalayan Mosaics, a job that was completed very nicely by former circus girl Chameli. You can't miss that on the right of the door as you go in.