Despite typographical flaws and dated references and language, this turned out to be a pretty fun read. I decided to read it after getting through Cormac McCarthy's Blood Meridian and realizing I knew nothing about the English language. All in all, having gone through it without the pressure of preparing for a standardized test, I definitely feel my vocabulary has grown (along with my etymological understanding of our language's component parts). I can't say this was a brilliant book (if there is one, please let me know) but I had fun with it.
A sometimes-fun book about words, roots, and etymology. I skipped over the workbook portions, but I enjoyed the light and often humorous style of writing.
I don't know that my vocabulary would get much better without frequently revisiting the book, but it was still interesting. Since it was first written in the 1940s, I think, it's amusing to see words that aren't around anymore. (It suggests that, while we watch a sports match, we might encounter "cunctatious" or "purlieus" from the commentators.)
Wouldn't recommend, but also wouldn't reprimand the authors for having written it.
On average, I am familiar with 75 out of 100 challenging and difficult words, which is something I'm proud of. It's by no means perfect, and I have a lot to improve, but being familiar with many challenging terms will definitely help me speed through my reading.