DETERMINING THE 
INFORMATION YOU NEED 
LIBR 250 
Week 3 
Jayati Chaudhuri
1. Research process 
2. Find the information 
3. Distinguish between primary and secondary 
information sources 
4. Various ways to access information 
LEARNING OBJECTIVES
Starts broadly and ends narrowly 
Effective research question 
Ineffective research question 
RESEARCH PROCESS
1. Primary Sources-Original document. For example: letter, 
diaries, speeches, interviews. 
2. Secondary Sources -Interpret and/or analyze primary 
sources. For example: encyclopedias, textbooks, and 
articles analyzing primary sources. 
PRIMARY& SECONDARY SOURCES
Reference sources 
Encyclopedias 
Dictionaries 
Directories 
Almanacs 
Atlases 
Indexes 
SECONDARY SOURCES
BOOKS 
http://www.calstatela.edu/library 
1. Print or digital 
2. Print – via Catalog 
3. E-books – via Catalog
HOW TO READ CALL NUMBERS
Scholarly journals 
Popular magazines 
Trade publications 
Newspapers 
Multimedia 
PERIODICALS
Trade Publications 
Periodicals intended for a 
specific industry or business 
Published by an association 
tied to the trade 
NEWSPAPERS & TRADE PUBLICATIONS
Scholarly Journals 
Popular Magazines 
SCHOLARLY VS. POPULAR

Jc week3-libr250