If you have been drinking wine for any length of time you will know about Hugh Johnson, he knows wine. This is only the second 'pocket wine book' I have acquired the first was years ago and went all over the world with me and taught me a lot about wine. I find this version not so informative as the old one, you basically have to know what you are looking for. I find myself looking up wines to confirm my opinion, as opposed to using the book as a guide. Having said that I do refer to it quite often, both buying cases and when imbibing in the odd bottle.