Occasional snippets of genuine interest - a lot of stuff that was quite basic.
This was an enjoyable book to read - there were a few really interesting moments (like the origin of the word 'freelance' - who knew?!), but quite a lot of it was fairly basic stuff.
However, for someone learning the ins and outs of the English language (and punctuation etc.) this may well be a handy little guide. It's certainly very accessible!
Only one small thing - felt rather sorry for the person who'd given the author a 5-star review in the past, who was hauled over the coals in this book for using too many exclamation marks (little bit mean to pick one someone who'd left a lovely, kind review of one of her previous books?). But perhaps she'd checked with the person in question, who didn't mind.