carbs and cals by chris cheyette and yello balolia is fab with great pictures of food sizes for when eating out and having to guess at things abit, however it is def not a book for the handbag or at least it doesnt fit in mine lol
This is the one I use. With two kids in tow I have a big bag, so no problems carrying it for me.
When I bought it a couple of months aga they were selling seconds on the well known online acution site. It had a small dent in the spine, after a couple of weeks of daily use I could not show you the original fault, to many other creases and dents have joined it.
I also have the colins one, I haven't heard about mistakes in it till now but I'm afraid I have to laugh when I read the page on sugar free chewing gum. I think there are seven or eight different flavours listed. All with no carbs, fat or anything else they list. Call me strange but I wasn't expecting a lot of nutrition from chewing gum.