The State of Rio de Janeiro, Brazil, has a lot to offer to the visiting birders. All of the territory of the state is part of the Mata Atlântica, Atlantic Forest in English, biome. This comes with a rich biodiversity and a large number of endemics. Some of those are Brazilian endemics, some of them are Atlantic Forest endemics (also occurring in Argentina and Paraguay). There are even three species that endemic to the State of Rio de Janeiro: Gray-winged Cotinga, Restinga Antwren and Black-hooded Antwren. Most visiting birders will go on organized tours to see these endemics. The tours will most likely visit sites such as Itatiaia National Park and Serra dos Órgãos National Park and their direct environments. Some birders will want to visit those sites, or others, by themselves. For all birders the series Birding in Rio will have information about which species the can find at which site. The books mention for each individual birding site a list of species that will attract special attention from the visiting birders: All endemics All near-endemics All species threatened to become extinct on a level above Least Concern: so from Near Threatened to (Probably) Extinct. Each birding site is shown on a map, but also in the text GPS-coordinates are given to show the birder the way to get to that specific site. The books are richly illustrated with photographs, showing mostly species of special interest: endemics, near-endemics and threatened.