A travel guide is a sort of a bible of information about a certain place, mostly tailored to fit the needs of a tourist. A travel guide book is the best source of information about a certain location’s cultural and historical information. It can be termed as the tourist’s best friend. When you are new to a certain place, and specifically visiting that place for tourism, you might not know a lot of good spots and ability to ask various people about it. Plus the information you are able to get from those people is going to vary from person to person, and could be a lot more time consuming.