IBBY's biennial international congresses bring together IBBY members and other people involved in children's books and reading development from all over the world. The congresses are excellent occasions to make contacts, exchange ideas and open horizons.

Every two years a different National Section hosts the Congress. Several hundred people attend the lectures, panel discussions, seminar sessions and workshops on current congress themes. An IBBY International Congress also serves as a frame not only for the General Assembly and other meetings, but also for the presentation of different exhibitions and celebrations such as the Hans Christian Andersen Awards and the IBBY Honour List.

IBBY Congresses are selected from submissions made by IBBY national sections five years before the congress date. IBBY will not accept submissions from non-member organisations.

Future IBBY International Congresses will be held in:

Moscow, Russia on 5-7 September 2020, with the theme Great big world through children's books, website:

Putrajaya, Malaysia on 5-8 September 2022, with the theme: The Power of Stories.

36th IBBY International Congress: Athens, Greece 30 August - 1 September 2018