These authors (who have married each other since the sixth edition) are passionate about detail. While researching this latest edition of their Zanzibar guide, Chris and Susan have personally visited each of the almost 250 properties featured. Zanzibar is experiencing rocketing development; so many of these hotels, lodges and guesthouses have been newly built since the last edition and are not mentioned in any other guide on the market. They've also meticulously redrawn and updated all their maps using GPS coordinates to pinpoint landmarks; again, they are the only Zanzibar guidebook authors to have done so. Just don't ask what they talk about over dinner.