Pocket Guide to English Usage (Eric Partridge) (not quite sure what this is. I shall have to look at it someday!)
The Oxford Writers' Dictionary - The Essential Style Guide (this book never seems to have what I want

The Right Way To Improve Your English (J.E. Metcalfe) (pretty good but seems to conflict with some on-line sources)
Eats, Shoots & Leaves (Lynne Truss) (love this book!)
Does anyone have any recommendation for a really good, thorough grammar book?
I guess I could live with a very good on-line source too, but I can't sit in my comfy chair with it, take it to bed or spend as long reading it.
British English only
