Book “Manlibro pri instruado de Esperanto” [“Handbook for teaching Esperanto”] – a book published in conjunction with ILEI, under the editorial guidance of Katalin Kovats. Thirteen authors contributed to it. Three editions have been printed so far, the fourth edition is being prepared. The book is a result of the project “Flugiloj de Malfacila Vento” (Wings of a Difficult Wind) and is used in the project’s seminars as a textbook.