Key Words for IELTS
I know that my own IELTS/EAP students sometimes find standard advanced learner's dictionaries a bit frustrating because the more formal and academic senses and derivatives of words often get little or no coverage - because they're less frequent in everyday usage. In these books, the more unusual senses and formal parts of speech (such as the abstract nouns so common in academic English) get equal coverage and IELTS-style examples.
Also at this level, it's often the case that the first word a student comes up with doesn't quite work in the context, so they need to be able to play around with vocabulary. For this reason, we've shown different parts of speech together (because sometimes a noun form works where a verb doesn't fit) along with possible synonyms that might fit in better.
The books are out in January and I'm going to be really interested to see how they go down with teachers and students. As a writer/editor, you really hope that all the ideas you put into a book will be obvious to the user and that they'll get as much out of it as you'd hoped. Keeping fingers crossed and looking forward to feedback in the New Year.