Title: Oxford River Books English-Thai Dictionary Author: Prima Mallikamas, Narisa Chakrabongse, Phaisan Piammettawat, Parima Manlikamat Level: Basic

Buy it here! (UK)

Really good dictionaries are difficult to come by, but this is one. It is clear and concise. This is a great reference book for anyone who studies Thai.

While it is large and may seem like it is for the advanced learner, it is actually best for the beginner. Some of the Thai dictionaries on the market are very confusing but this will really help you in your studies.