Using G (GHB/GBL) poses particular risks and challenges: It is necessary that we discuss it more and more openly! This text introduces a series of articles about G. By doing so, we intend to contribute to minimising the harm associated with its use and helping to prevent overdoses – and thus G emergencies. We want to provide knowledge to users and (non-consuming) relatives/friends* and give space to the perspectives of everybody. The social dimensions of G-consumption should also be discussed.