I've recently bought the Professional Teeline textbook to brush up on my Teeline and finally learn all the affixes, special outlines, etc.
I'm happy to see a book that tries to apply Teeline to modern language, and that is independent of NCTJ (which "owns" Teeline), and that they are planning to publish a modern Teeline dictionary.
Buuut, the first edition is a mess so far. There are errors in both long- and shorthand, the exercises sometimes use bits of theory that hasn't been introduced yet, and sometimes not, even though they would make the shorthand a lot more efficient, and they sometimes don't even explain those bits (like the SH symbol in 'she'). Plus there are some divergences from the NCTJ "standard" that don't seem necessary.
I'll see if it gets better later. But if you'd like to learn Teeline, definitely go with NCTJ's "Teeline Gold Standard for Journalists"



