Based on collection session usage
| Collection | FY21 |
|---|---|
| 78-RPM Recordings Collection | 1054 |
| AVoicesVisions | 100 |
| Ach Ya!: German Music in WI | 329 |
| Aerial Wisconsin | 10871 |
| Africa Focus | 13462 |
| African Studies | 14169 |
| Aldo Leopold Collection | 5670 |
| All Sewn Up | 2319 |
| Amateur Journalism Collection | 192 |
| American Founding Period | 1584 |
| American Libraries During World War I | 31 |
| Americana Sheet Music | 4201 |
| Arnold Munkel Collection | 187 |
| Art Student Exhibitions | 55 |
| Artists' Book Collection | 5424 |
| Arts Collection | 15258 |
| Atlas des Deutschen Reichs | 131 |
| Aviation History of Racine | 235 |
| Badger Yearbooks | 870 |
| Barneveld Local History | 370 |
| Barron, Chippewa... Local History | 523 |
| Belgian-American Collection | 2575 |
| Benson Laotian Slide Collection | 4387 |
| Berquist Slovenian Recordings Collection | 124 |
| Botany Collection | 35425 |
| Botany Department Teaching Collection | 31785 |
| Brecht Yearbook | 694 |
| Brittingham Slide Collection | 2290 |
| Bruce Bollerud Collection | 167 |
| Brusoe Family Scrapbook | 41 |
| Bunny Berigan of Fox Lake | 205 |
| Cairns Collection of Women Writers | 17 |
| Camp Gallistella | 123 |
| Carl Rakosi Papers and Audio | 7 |
| Carson Gulley Cookbook Collection | 313 |
| Cartonera Publishers Collection | 4625 |
| Casselman Spanish Architecture | 3440 |
| Chemical Engineering Technical Papers | 22 |
| Commemorative Fabrics from Africa | 182 |
| Communications (International Brecht Society) | 42 |
| Correspondence Concerning Iceland | 25 |
| Cyclopaedia | 165 |
| DARE Fieldwork Recordings | 7914 |
| Daily Cardinal | 259 |
| De Smet Medieval Church Architecture | 2393 |
| Decorative Arts and Material Culture | 7505 |
| Deer & Wild Turkey Study Group | 60 |
| Dominy Craftsmen Collection | 365 |
| Dovie Horvitz Collection | 3381 |
| Down Home Dairyland Collection | 681 |
| East Asian Collection | 4861 |
| Eastern European Collection | 1555 |
| Ecology and Natural Resources | 20659 |
| Ethnic Music of Northern WI & MI | 643 |
| Ethnographic Collection | 609 |
| Evansville, Wisconsin Collection | 170 |
| Folksongs of Another America | 366 |
| Fond du Lac and Green Lake History | 47 |
| Foreign Relations of the US | 4341 |
| Forest Atlas of the U.S. | 60 |
| Forest Products Oral History Project | 334 |
| Galápagos Collection | 158 |
| Gay Peoples Union Collection | 2377 |
| Gender and Women's Studies | 5231 |
| German Studies Collection | 6310 |
| German-American Correspondence | 298 |
| German-American Music Project | 283 |
| Great Lakes Maritime History | 5683 |
| Greetings from the Fatherland | 3624 |
| Halpern Laotian Slide Collection | 8088 |
| Harold Scheub Collection | 8216 |
| Historic Fort Atkinson | 285 |
| Historic Librarians and Benefactors | 133 |
| Historic Steamboat Photographs | 59875 |
| Historic Theater Posters | 563 |
| Historic USGS Topographic Maps | 1889 |
| Historical Primary Sources | 306 |
| History Collection | 7918 |
| History of Children's Literature | 85 |
| History of Limnology | 1140 |
| History of Science and Technology | 2486 |
| History of UW-Eau Claire Collection | 110 |
| History of UW-Green Bay Collection | 435 |
| History of UW-La Crosse Collection | 863 |
| History of UW-Madison Libraries | 788 |
| History of UW-Milwaukee Collection | 617 |
| History of UW-Oshkosh Collection | 1249 |
| History of UW-Parkside Collection | 185 |
| History of UW-Platteville Collection | 318 |
| History of UW-River Falls Collection | 466 |
| History of UW-Stevens Point Collection | 621 |
| History of UW-Stout Collection | 2935 |
| History of UW-Superior Collection | 278 |
| History of UW-Whitewater Collection | 533 |
| History of Women at UW | 169 |
| Home Economics to Human Ecology | 1836 |
| Homemaking for Children | 128 |
| Human Ecology Collection | 5235 |
| Illustrated Books from the Late Edo | 489 |
| Iltis Botanical Photos | 3640 |
| Images of Angkor Wat | 561 |
| Images of Lake Geneva | 427 |
| Images of the African Diaspora | 430 |
| In Tune With Tradition | 306 |
| Indochina War Refugees in Laos | 78 |
| Islam and Eurasia | 305 |
| James Graaskamp Collection | 331 |
| James Joyce Scholars' Collection | 1238 |
| Janesville's Past | 2113 |
| Jesuit Iconography | 112 |
| Kenosha County History | 2958 |
| Kenosha's Lost Industries | 1751 |
| Kiel, 1860-1980 | 1158 |
| Ku Klux Klan in NW Wisconsin | 28 |
| Kuhn Laotian Image Collection | 9382 |
| Lawrence Monthey Photo Collection | 191 |
| LeRoy Larson Collection | 354 |
| Leonard Finseth Collection | 223 |
| Libraries and Schools in Marathon and Lincoln Countie | 493 |
| Library and Reading Posters | 104 |
| Lillian Trager Papers | 785 |
| Literature Collection | 1260 |
| Local Centers-Global Sounds | 10667 |
| Longridge Collection | 1411 |
| Luther Burbank, His Methods and Discoveries | 43 |
| MPL Annual Reports | 5 |
| MSC Archive | 1999 |
| Manitowoc County in WWII | 1477 |
| Manitowoc Local History | 3305 |
| Maps and Atlases of La Crosse County | 205 |
| Max Kade Collection | 1067 |
| Mayrent Yiddish Recordings | 15783 |
| Menasha Local History | 586 |
| Meuer Photoart Collection | 43 |
| Michael Dombeck Papers | 160 |
| Mills Digital Collections | 18372 |
| Mount Horeb Area History | 13 |
| Mount Horeb: Korean War Veterans | 96 |
| Mount Horeb: WWII Veterans | 409 |
| Nazi Culture Lectures | 6 |
| Neenah Local History | 531 |
| New Glarus Local History | 708 |
| Nimogram Archaeological Images | 1129 |
| North Carolina Earthenware | 1148 |
| Norwegian Folk Figures | 377 |
| Ohnuki Collection | 489 |
| Olakh's Feminist Political Posters | 952 |
| Oneida Language Preservation Project | 2037 |
| Oshkosh, Omro and Winnebago County History | 192 |
| Ozaukee County Local History | 29 |
| Palmyrene Aramaic Inscriptions | 523 |
| Paramount Records Discography | 830 |
| People of the Sturgeon | 71 |
| Philippines Image Collection | 7857 |
| Philippines Military Academy Album | 297 |
| Plant Ecology Laboratory Archive | 274 |
| Polish Folksong Collection | 168 |
| Polka Music-Polka Culture | 72 |
| Primate Collection | 9918 |
| PrimateImages | 819 |
| Primates in Art and Illustration | 2217 |
| Publishers' Bindings Online | 14431 |
| Recipe for Victory | 644 |
| Russian Satirical Journals | 269 |
| Sage Laotian Image Collection | 4937 |
| Sahiyar's Feminist Political Posters | 391 |
| Secrets Reveal'd: Alchemy and "Chymistry" | 610 |
| Silver Buckle Press Collection | 1116 |
| Slinger Local History | 470 |
| Southeast Asian images & Texts | 38591 |
| Stereoviews of France | 650 |
| Suzuki Talent Education Program | 1160 |
| Tams-Witmark Collection | 62 |
| Taylor Brothers Photographs | 736 |
| The Wisconsin Workshop | 124 |
| Theatre to Cinema | 124 |
| Two Rivers History | 614 |
| U.S. Lake Survey Maps | 336 |
| UNTAC Archives | 232 |
| UW Board of Regents Collection | 145 |
| UW Campus Humor | 58 |
| UW Collection | 76881 |
| UW Student Albums and Scrapbooks | 161 |
| UW-Madison Archives | 55223 |
| UW-Madison Athletic Department | 289 |
| UW-Madison Class Albums | 72 |
| UW-Madison Collection | 55674 |
| UW-Madison Oral Histories | 4877 |
| UW-Madison Special Collections | 1775 |
| UW-Madison Student Handbooks | 176 |
| UW-Madison's Cultural Landscape | 2013 |
| University Communications | 446 |
| University of Wisconsin: a History | 93 |
| Veterinary Anatomical Illustrations | 1209 |
| Virginia M. Kline Collection | 816 |
| Visual Materials in Mills Music Library | 239 |
| WHA Radio Broadcasts | 1203 |
| WI Bordner Survey Maps | 6508 |
| WI Geological and Natural History | 5497 |
| WI Public Land Survey Records | 18817 |
| WIAC Programs | 80 |
| Walworth County Plat Map (1857) | 152 |
| Wat Tham Krabok Refugee Camp | 648 |
| Waterford Area Local History | 860 |
| Waukesha County History | 1205 |
| William Hervie Dobson Collection | 794 |
| Wisconsin Collection | 84182 |
| Wisconsin DNR Collection | 5425 |
| Wisconsin Emergency Management | 479 |
| Wisconsin Folksong | 3923 |
| Wisconsin Goes to War | 5922 |
| Wisconsin Local Histories | 69269 |
| Wisconsin Sheet Music | 2340 |
| Wisconsin Union Collection | 3425 |
| Wisconsin's Historic DNR Photos | 1146 |
| Wofford Laotian Image Collection | 2412 |
| Women’s March, 2017 | 507 |
| Woodland Indian Traditional Artists | 982 |
| World War I Collection | 1810 |
| Zoology Museum Collection | 429 |
| iSchool Collection | 1440 |