Secondary sources comment on, collect, review, analyze, explain or interpret primary sources. Remember that not all secondary sources are scholarly.
|Discipline||Primary Source||Secondary Source|
|History||Letters written by a historical figure||A journal article explaining why the letters are important|
|Literature||A poem||A biography of the author that quotes from the poem as an example of his/her work|
|Medicine||An empirical study about the effects of physical activity on childhood obesity||A systematic review article about childhood obesity that mentions the study|
|Kinesiology||An empirical study comparing the lunch function of endurance athletes and bodybuilders||A blog post about what the results of this study means for practicing bodybuilders|
|Sociology||An interview study where teenagers talked about their use of mobile technology||A news report about the study's findings|