books by subject
Grammar
The Oxford Guide to English Usage (Oxford reference)
Fowler's Modern English Usage (2nd Edition)
Global Warming: Greenpeace Report
Basic English Usage
Practical English Usage (2nd Edition)
Practical English Grammar for Foreign Students
Practical English Grammar for Foreign Students
Exercises (v. 1) (Practical English Grammar for Foreign Students)
Exercises (v. 2) (Practical English Grammar for Foreign Students)
A Practical English Grammar (4th Edition)
A Practical English Grammar (4th Edition) (Low Priced Edition): A classic grammar reference with clear explanations of grammatical structures and forms.
English Grammar Lessons: An Interactive Classroom Grammar: Upper-Intermediate: With Key
Grammar Spectrum 1 Elementary: 1 Elementary: with answers: Elementary Bk.1
Grammar Spectrum 2: Pre-intermediate: with answers
Grammar Spectrum 3 Intermediate: 3 Intermediate: with answers: Intermediate Bk.3
The Good Grammar Book (With Answers)
Exercises (Bk. 1) (Practical English Grammar for Foreign Students)
Idioms in Practice
A Basic English Grammar: A Basic English Grammar
Headway: Workbook (with Key) Elementary level
Spot Drills: Bk.2: Illustrated Grammar Exercises (Oxford American English)
Techniques and Resources in Teaching Grammar (Teaching Techniques in English as a Second Language)
Grammar Dictation (Resource Books for Teachers)
Natural Grammar: The key words of English and how they work
Oxford Living Grammar: Upper-Intermediate: Student's Book Pack
Formal Grammar: Theory and Implementation (New Directions in Cognitive Science)
Formal Grammar: Theory and Implementation: 2 (New Directions in Cognitive Science)
The Elements of Legal Style
Skeptical Linguistic Essays