Anyone familiar with these books, and familiar with how up-to-date they are?  The one thing I never learned much of in my Thai course was slang... so I've been studying this book a little bit, but I don't want to use some of these phrases and get laughed at for being 100 years behind the times. hehe  I don't necessarily need to know that all 600 words in this book for pen1s, etc. are accurate.. but the other things.

I have the slang book...lol. My wife gets a kick out of it! A lot of times i get the evil eye and told to never say that! Then there are times when she doesn't quite understand what is being said. I dunno, I find it amusing sometimes!

I have speak like a thai one and 2 and they are well worth a read. However, it is worth going through the books with a thai friend. Some sayings are out of date and some you have to be very careful with. there are some crackcing phrases in there though which will have your thai friends in stitches.