LIFE SAVER!!! YAAAAY! - Rated 
This map book was amazingly fantastically useful. When I went to Tokyo knowing no Japanese other than hello, good bye, and excuse me (not the easiest way to go to Japan believe me. learn a few more phrases than that before you go). Firstly the city map: brilliant very detailed, every building is numbered and allot of them are labelled with what they are (allot)for example shopping centres that are not even in the travel guides and things that are like the Sony building. very very useful when trying to get your bearings when you walk out of a subway station in Gina. the city map is very accurate and reliable. secondly the subway and rail maps, these where superb simply pointing to the station that you wanted to get to on the map is allot more useful than doing the old British thing of saying the word loudly slowly but still pronouncing it completely wrong. Used this part of the book everyday extremely useful. whatever you do if this is your first time going to Tokyo don't go without a bi-lingual map believe me when I say you will regret it if you only have an English map on you when you get there. it makes asking directions so much easier and the Japanese appreciate that you have something in there language. Money that you couldn't spend any better, and of this if your first time in Tokyo money that you need to spend. Buy this book, your gonna need it!!!!
The best bilingual map of Tokyo - Essential - Rated
I have been based in Tokyo for the last four years and have used extensively both the second and third editions of this book. I've also recommended this book to other expats and visitors coming to Tokyo for a reasonable length of time and had them find it useful and write positive reviews.
As noted by other reviewers, this is only a book of maps (streets, trains, subway) covering central "greater Tokyo" (i.e. more than inside the Yamanote line, but certainly not all 23 wards). You will need a guide book in addition - personally I'd recommend Lonely Planet, but that's just a personal preference.
This is a book for walking and travelling round Tokyo it is not really a driving atlas. It will help you find Tokyo landmarks and addresses (at least down to the right block - which is all you can expect...) but it is not particularly well arranged for driving round the city.
If you are coming to Tokyo for more than a couple of days I would recommend adding this book to your bag.
A great guide - Rated
This is the only atlas you'll need when travelling in Tokyo : full color maps, very clear, very detailed, with good subway map. You cannot get lost with this guide ! Buy also "Tokyo", the new edition from Lonely Planet, and you're set. It's the only two guides you"ll need : travel light !
The only one you'll need? - Rated 
I'm a first time tourist going to Tokyo and I found the guide to be extremely user friendly. Everything is listed very detailed and in colour. Even the subway system was covered, and I found it rendering the other subway guide I got pretty useless. Probably the only gripe I have is that it only does it's job as an atlas guide and nothing more. No intro or extra info of the city and places, or tips on how the address system works in Japan and how you should go about finding your way around. But all in all, a pretty satisfying buy.
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