I just finished reading Wanderlust and Lipstick by Beth Whitman. It's a book/guide for women traveling alone. The book is pretty good and an easy read. Beth gives encouragement to women to travel outside the normal spots and to fight the excuses not to travel. The book simply covers just about every aspect of travel, guiding women to and through travel.
The most informative chapter, in my opinion, is the one about staying healthy. Everyone worries about pick pockets, how to get to the hotel, but unless people have medical problems they usually assume they will be healthy on vacation, which isn't always the case. This book makes you realize that things can happen and makes some suggestions to help yourself in case you do get sick.
What I didn't like about the book? It was basic at times.
An experienced traveler could skip this book, but its a great resource for more novice travelers or those looking for encouragement.