The Documentation Centre has a special collection of at present more than 7 000 sample learning materials used in adult literacy, post-literacy and out-of-school education from more than 120 countries in more than 160 languages. We constantly update the collection and welcome any contribution. Selected material of the Special Collection can be viewed on the Literacy Exchange website, which provides comparative country-by-country studies on literacy activities, including large samples of teaching materials used. The Special Collection catalogue is accessible online.