Libri Revelio II:

Interrogating our JSTOR Books DDA activation

Harold ColsonInternational Relations Librarian, U.S. History Librarian & eBook Coordinator

hcolson@ucsd.edu

DDA books purchased,January 1 – May 10, 2015 (three major aggregators)

Big Three AggregatorsCombined DDA Title Purchases

Daily, January 1, 2015 -->

Big Three AggregatorsCombined DDA Title Purchases

Daily, January 1, 2015

Big Three AggregatorsCombined DDA Title Purchases,

Daily, January 1, 2015 ->

Our JSTOR Environment

Almost complete coverage of archive holdings

Student enrollment: 31,600

Over 156,000 searches in 2014

Over 447,000 full-text article requests in 2014

DDA Activation & Our Historic (2014) JSTOR Usage Cycle

Source: JSTOR

“All In” JSTOR Books DDA Arrives

“All In” JSTORBooks DDA Arrives“All In” JSTOR Books

DDA Arrives

“All In” JSTOR BooksDDA Arrives

Interrogation Says…

JSTOR drives

Calendar matters

Demand skews

Curriculum shows

JSTOR saves

Source: JSTOR

UCSD PDF View & Download Referring Sources, April-May 2015

JSTOR COUNTER Reports: Tracking /Projecting 2015 UsageJSTOR COUNTER Reports: Tracking/Projecting 2015 UsageJSTOR COUNTER Reports: Tracking/Projecting 2015 Demand

Used Books Ranked By Chapter Views/Downloads

20% of used books (4% of all books)

account for 70% of all uses

Used Books (6731) Ranked By Chapter Views/Downloads

20% of used books(4% of all books)account for 70%

of all uses

25,000 more titles have no uses

Highest Demand JSTOR Titles By Total Chapter Views & Downloads

Title Uses Purchased

Keywords for American Cultural Studies, Second Edition 1463 17-Apr

Mexicans in the Making of America 623 29-Apr

Quentin Tarantino Interviews, Revised and Updated 275 24-Sep

The Black Death in Egypt and England 237 4-Apr

Androgyny in Late Ming and Early Qing Literature 225 6-Apr

Sports and the Racial Divide African American and Latino Experience in an Era of Change 212 14-Aug

Negotiating Masculinities in Late Imperial China 206 6-Apr

Not the Triumph but the Struggle The 1968 Olympics and the Making of the Black Athlete 198 14-Aug

The Power of Knowledge How Information and Technology Made the Modern World 196 6-Apr

Galileo Watcher of the Skies 167 5-Apr

Food and Environment in Early and Medieval China 162 5-Apr

The History and Sociology of Genocide Analyses and Case Studies 158 5-Apr

First Nights Five Musical Premiers 141 26-Sep

Rising China and Its Postmodern Fate Memories of Empire in a New Global Context 139 6-Apr

Making a Living in the Middle Ages The People of Britain 850–1520 127 6-Apr

Architecture since 1400 121 7-Apr

Average cost of DDA purchases (1512) of JSTOR Books: $63.56

Average cost of DDA purchases* (387) from aggregators: $96.29 to

$120.49 for owned copy plus $20.75 to $26.43 for each prior short-term loan

*2015 YTD

JSTOR Books Growth & Events Since Activation

Cataloging B

Cataloging C

Cataloging A

Fall TermStart

Spring TermEndgame

Promos

Promotional Image, Fall 2015