Finally: a book with clear and easy explanations of your most common grammar, usage, and punctuation questions. There, Their, They're: A No-Tears Guide to Grammar from the Word Nerd cuts the convoluted terminology and explains things in a way anyone can understand. The Word Nerd-as the author is affectionately called because of her "Word Nerd Wednesday" blog series-is known for her ability to help even the most frustrated writer get it.
Used availability for Annette Lyon's There, Their, They're