If you just start to learn to read Thai.
This is a good book to learn Thai call “Maa-nee maa-na”. All you need to know is Thai consonant and vowels.First you need to learn Thai consonants (click here to Practice Thai consonants)
After you learn some consonants if you would like to learn to read more you can try to read by yourself (click to download maa-nee ma-na book)
There is fastest way also to learn Thai reading and writing contact Kroo Nun .I will help you to learn to read Thai and fluent in reading Thai.