Betty Schrampfer Azar books in order

5 books in the catalogue, about 28 hours of reading in all; the shortest takes 1 hour and the longest 8 hours.

5 standalone books in the catalogue.

Standalone books

Understanding and Using English Grammar 1981 8.0 h Basic English Grammar 1984 6.8 h Fundamentals of English Grammar 1985 6.8 h Basic English Grammar, Book A 1995 4.7 h Answer Key 1996 1.3 h