Academic theses 38,966 Audiobooks 29,512 Aufsatzsammlung 23,799 Atlases 13,843 Anecdotes 12,447 Annual Reports 9,615 Art music 8,800 Autobiographies 8,440 Almanacs 7,317 Adventure fiction 5,755 Abstracts 5,010 Arrangements (Music) 4,720 Art 4,392 Action and adventure fiction 4,136 Action and adventure films 4,051 Addresses, essays, lectures 3,996 Archives 3,715 Adaptations 3,668 Artists' books 3,435 Adventure stories 3,323 Apologetic works 3,137 American drama 3,025 Animated films 3,009 Academic Dissertations 2,648 Amateurs' manuals 2,438 Authors' presentation inscriptions (Provenance) 2,051 Advertisements 2,030 Adventure stories, American 2,029 Aerial views 1,557 American 1,501 Atlas 1,402 Anthologies 1,358 Autobiographical fiction 1,283 Aerial photographs 1,210 Animated television programs 1,202 Alphabet books 1,166 Ausstellung 1,150 Annotations (Provenance) 1,066 Autobiography 1,049 Armorial bookplates (Provenance) 934 Adventure 921 Action and adventure television programs 910 Adventure films 906 American poetry 854 Allegories 793 Alternative histories (Fiction) 764 Academic dissertations 750 Anthologie 676 Alternative rock music 643 Architectural drawings 626 American fiction 562 Authors' autographs (Provenance) 555 Authors' presentation copies (Provenance) 520 Actualities (Motion pictures) 516 Animation 493 Art and the war 493 Adaptation 488 Adult 480 Acting editions 468 Autographs 435 Atlantic Slave Trade Collection 431 African drama 410 Autographs (Provenance) 407 Anthems 385 Auction catalogs 370 Annual reports 351 Autobiographie 351 Audio-visual aids 314 Aeronautical charts 304 Apologetic writings 278 Action and adventure comics 267 Art songs 259 Arthurian romances 255 Addresses 249 Aufgabensammlung 247 Adventure television programs 237 Almanacs, Italian 228 Asian Studies 202 Autobiographical comics 202 Abbreviations 199 Authors' copies (Provenance) 195 Anniversary sermons 192 Authors' inscriptions (Provenance) 190 Animal fiction 172 Ausstellungskatalog 169 Activity books 158 Aleatory music 158 Australian Studies 158 Author's presentation inscriptions (Provenance) 158 Apocalyptic fiction 156 Accompaniments 154 Armorial bindings (Binding) 151 Aids and devices 149 Academic addresses 146 African Studies 145 Alphabet rhymes 134 Agricultural newspapers 132 Acronyms 131 Acrostics 129 Animal films 128