Many years ago (1996) while living in Bangkok I wanted to learn Thai. One particular book that was recommended to me was called “The Fundamentals of the Thai Language”. I found it to be a fantastic resource. So much so that when I wanted to continue to learn some years later (having previously not completed it) I tried unsuccessfully to find the book again. As such, I took my hunt online and discovered a useful windows help file from which I could easily print the chapters from the book. A link to the zipped .hlp file is below.
Included in the zip is a folder containing the instructions and necessary applications to allow .hlp files to be viewed on any Windows OS since 7 as Microsoft decided to end support for the format.
If you would rather read the book online a kind person by the name of Lyndon Hill converted the book to html back in 2006. It can be found here.
..:: EDIT ::..
It appears that the above resources no longer function. As of Windows 11 (perhaps earlier) the winhelp32.exe file will no longer install thus rendering the help file entirely useless 🙁 I did try some other hlp readers, like HelpExplorer3.0 but for some reason that only appeared to open a part of each chapter. Add that Lyndon Hill no longer has the html version on his current website and it would – at first glace – appear that we reached a bit of an impasse.
Wayback Machine to the rescue.
https://web.archive.org/web/20180821202823/http://www.lyndonhill.com/FunThai/CONTENTS.html
It is also possible to get a pdf version of the book, although I’m not sure of the legality of posting those here. Contact me if you’d like me to dig up the file for you 🙂