By James M. Ward and Anne K. Brown, The Storyteller's Thesaurus is more a group of words for storytellers needing a trigger, an idea, a different way of describing things (eminating magic instead of firing spells). For example, under Facial Features you get everything from cheeks (apple-cheeks) to dental work (partial plate).
A chapter on characters (this a fantasy work so Race and Species are considered equal footing), architecture & property, and a huge alphabetical index.
Will you ever need to describe a different dwarf race with apple cheeks but a character with a partial plate as a description? Maybe so. You now have a quirky (I believe James M. Ward did the original beloved Gamma World) theme/thausari grouping that gives you a basis to not only explore further but provides words you probably never thought of.
Recommended with Instant GM and especially The GMs Real-World Reference for really weird cross-links.
I hope one day this will be offered in print-on-demand format.
[5 of 5 Stars!]