There, Their, They're - Annette Lyon - Bog

"The most reliable, accurate, and usable grammar guide I've yet found. . . . Annette Lyon actually offers you accurate advice. . . . from now on, when people express that rare thing-an interest in learning the rules of orthography and grammar-this is the book I'm recommending to them. And it's the one I'm keeping by my computer for quick lookups when I don't want to mess with the whole Chicago Manual of Style." -Orson Scott Card Popular with editors, novelists, and students preparing for the ACT and SAT, and with those who simply want to master grammar once and for all. Cut through the convoluted terminology; THERE, THEIR, THEY'RE explains concepts in a way even the most frustrated writer can understand.
The second edition has more than sixty new and expanded entries and is twice the size of the original.