For specific writing advice, I recommend the new book The Sense of Style[1] by Steven Pinker, which is about not just fussy rules of English but also about THINKING in a way that helps improve writing. I will have to practice with the ideas in that book for a long time.
I'd add Write Right! by Jan Venolia and Writing With Style by John Trimble.
The Sense of Style is wonderful but I worry especially that it might be too advanced for relative beginners, and the chapter about sentence diagramming / sentence grouping may be confusing.
I'd add Write Right! by Jan Venolia and Writing With Style by John Trimble.
The Sense of Style is wonderful but I worry especially that it might be too advanced for relative beginners, and the chapter about sentence diagramming / sentence grouping may be confusing.