Lub tsev qiv ntawv yog ib qho kev sib sau ntawm cov ntaub ntawv thiab cov peev txheej zoo sib xws, xaiv los ntawm cov kws tshaj lij thiab ua kom nkag tau mus rau lub zej zog txhais tau rau kev siv lossis qiv, feem ntau nyob rau hauv ib qho chaw ntsiag to uas tsim nyog rau kev kawm. Nws muab lub cev lossis digital nkag mus rau cov khoom siv, thiab tej zaum yuav yog qhov chaw ntawm lub cev lossis qhov chaw virtual, lossis ob qho tib si. Ib lub tsev qiv ntawv sau yuav muaj xws li cov phau ntawv, periodicals, ntawv xov xwm, thaud, films, maps, prints, ntaub ntawv, microform, CDs, cassettes, videotapes, DVDs, Blu-duab tshav Discs, e-phau ntawv, audiobooks, databases, thiab lwm yam tawm tswv yim. Cov tsev qiv ntawv ntau yam dav hauv qhov loj me txog ntau lab ntawm cov khoom.