This book is the result of work that the Facebook group "Street Photography in the World" has been doing for years; with it we have tried to collect the best photos posted in the group during the course of its existence. The choice was not easy: in fact, the group has 160,000 active members who send hundreds of photos every day, and it was one of the first to pay tribute to "Street Photography", at least on Facebook Thanks to the perseverance of its founder Roberta Pastore, the quantity, but especially the quality of the published photos, has grown with the passage of time. The group has an international character, with authors who come from all parts of the world, a proof that this photographic genre has developed in all cultures. The idea is that this publishing initiative is not to be a sporadic one, but should become a regular event, so as to promote those artists who are outside the commercial logic and help them to publish their work. Each author published here has lent his work for free, and remains the sole owner of the published image rights. Thanks are due to those who daily work with passion in the group, and especially to those who will follow closely this editorial initiative, hoping that this work is appreciated