Information for Interlinguists (IfI) is a newsletter issued four times per year. It was first published in 1974, in Esperanto, under the name Novaĵletero por Interlingvistoj, edited by Ulrich Lins. From 1983 to 1990, its second series appeared under the editorship of Ryszard Rokicki. It became Informilo por Interlingvistoj (IpI) in 1992, when Detlev Blanke began editing it. Information for Interlinguists (IfI), the English-language equivalent of IpI, was first published in 2017. IfI is full of up-to-date announcements about publications and events, as well as information about everything new in the world of interlinguistics and Esperanto studies.