For the stylish mom who loves to travel, the Wallpaper City Guides are an essential part of her packing list. These small and concise guides sum up editors’ picks on hotels, restaurants, architectural sites, shops and side trips. Small enough to fit into most bags and purses, these guides keep you in the know while in unfamiliar territory. There are now 80 City Guides, from Mumbai to Cape Town, with 10 of the most popular city guides available as iPhone apps. The emphasis is on the trendier side, so I don’t always follow the restaurant recommendations, preferring a good meal to being seen, but the rest of the guides are helpful and good companions when navigating new cities. Available individually or in these box sets: World Cities Arts Fairs, World Cities Beaches, World Cities Business, World Cities Fashion.