You MUST begin with reading Thai Script. This is the ONLY sure method. This book combines fundamental vocabulary, elementary grammar, and, ABOVE ALL, it starts at the beginning with learning Thai script. Then, begin the Thai for Intermediate learners, from the same author, Becker. If you do not start this way, then you will, Shirley, fail. Or, if you don't fail, then you will lose focus. It is only through the learning of Thai script that one can maintain motivation and focus. ANKI is indispensable for memorizing all things, including Thai vocab, Science terminology, and academic vocabulary. Anki is Free, as in Free Beer, too. Listen to ALL Becker's audio files, as well. These are very well done. I strongly advise against learning Thai from your GF, as some insist upon doing. I find having a GF around to be nothing but a distraction and a hinderance to the learning endeavor. Good Luck. Thai is easy. But, Chinese language learning is easier. Trust Me. CRUCIALLY: It is most important to STOP TALKING ABOUT learning Thai, and actually DO IT, instead. Talking about learning Thai is what most people do, of course.