Reference books from the series "The Great" (whether these are great travelers, scientists, commanders) cannot boast of the novelty of the idea: they have been known for a long time. They are known and disseminated. Because they are popular. The principle of such reference books is the compressed format and information maximum, only the facts and significant events is attractive to the reader, whether they are schoolboys or students preparing an essay, or people who are simply interested in the current theme. Therefore those, who are not indifferent to history of the Great geographical discoveries, the application "The Great Pioneers" for iPad and iPhone will be useful and interesting. In the application 40 people are presented who have changed the world. And they have done it in the literal sense, because all the ideas of the Earth form, of contours of the continents changed depending on the discoveries done by them. Pioneers' life stories are similar to the adventure story. But these people, having often pursued the mercenary purposes, in search of glory and wealth, stimulated science development: such disciplines as geography, astronomy, biology, anthropology, cartography. Many of the presented names are out of the way to many people, others well known, but reading about the former and the latter, for certain, you will find something new and interesting for yourself. itunes.apple.com/app/id552290052