Laibulale ndi gulu losanjidwa la magwero a zidziwitso ndi zina zofananira, zosankhidwa ndi akatswiri ndikuwafikitsa kwa anthu amdera lomwe amawafotokozera kapena kubwereketsa, nthawi zambiri m'malo opanda phokoso abwino kuphunzira. Amapereka mwayi wakuthupi kapena wa digito kuzinthu, ndipo akhoza kukhala malo enieni kapena malo enieni, kapena zonse ziwiri. Kutolera kwa laibulale kungaphatikizepo mabuku, ma periodicals, nyuzipepala, zolembedwa pamanja, mafilimu, mamapu, zosindikizira, zolemba, ma microform, ma CD, makaseti, mavidiyo, ma DVD, Blu-ray Discs, e-books, audiobooks, databases, ndi mitundu ina. Malaibulale amasiyana mokulira mpaka mamiliyoni azinthu.