If you are going for broke, you need to know the initial sound, the name taught to Thai school children, whether or not it changes if it’s at the end of a word or if it never appears at the end of a word at all, and the class as well (high, medium, low).

I bought flash cards. I used YouTube videos. I taped an alphabet poster to the wall (then later, I used that same wall to bang my head).

I didn’t learn the Thai alphabet until I came across a simple product using mnemonics/associations. The graphics are not pretty, but I quickly learned the shapes of each letter, the beginning and ending sounds, and their class.

Using the same product I also learned Thai numbers in about ten minutes.

The kinder Thai names I tackled at a later time.