This grammar book has the size of a dictionary, and the entries are in alphabetical order for quick reference. It is "intended for intermediate and advanced students, and for teachers of English," as it is stated in the introduction. I particularly enjoy the bright white of the paper and the use of a brown-red for the entries, whereas their explanations are in black, in bold type and cursive. There are also ten very interesting pages about "newspaper headlines" and useful information on "stress, rhythm and intonation," as well as "weak and strong forms."
I have a degree in foreign languages and literatures and have taught English for the last ten years. I think everyone who studies the English language should have this book on their shelves, next to their dictionaries, for whatever your grammar doubt is, you'll quickly find a solution to your problem.