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((Short description|Student study guides))
((Use American English|date=March 2021))
((Use mdy dates|date=March 2021))
((rip|date=April 2021))
[[File:CliffnotesRomeoAndJulietCover.jpg|thumbnail|150px|CliffsNotes for ''[[Romeo and Juliet]]'']]
'''CliffsNotes''' are a series of student [[study guide]]s. The guides present and create literary and other works in [[pamphlet]] form or online. Detractors of the study guides claim they let students bypass reading the assigned literature. The company claims to promote the reading of the original work and does not view the study guides as a substitute for that reading.<ref name="about" />

== History ==
CliffsNotes was started by [[Nebraska]] native [[Clifton Hillegass]] in 1958.<ref>((Cite web|url=https://www.theatlantic.com/technology/archive/2022/12/openai-chatgpt-writing-high-school-english-essay/672412/|title=The End of High-School English|first=Daniel|last=Herman|date=December 9, 2022|website=The Atlantic))</ref> He was working at [[Nebraska Book Company]] of Lincoln, Nebraska, when he met Jack Cole, the co-owner of [[Coles (bookstore)|Coles]], a Toronto book business. Coles published a series of Canadian study guides called [[Coles Notes]], and sold Hillegass the U.S. rights to the guides.

Hillegass and his wife, Catherine, started the business in their basement at 511 Eastridge Drive in Lincoln, with sixteen [[William Shakespeare]] titles. By 1964, sales reached one million Notes annually. CliffsNotes now exist for hundreds of works. The term "Cliff's Notes" has become a [[Generic trademark|proprietary eponym]] for similar products. 

[[International Data Group|IDG Books]] purchased CliffsNotes in 1998 for $14.2 million. [[Wiley (publisher)|John Wiley & Sons]] acquired IDG Books (renamed Hungry Minds) in 2001.  In 2011, CliffsNotes announced a joint venture with [[Mark Burnett]], a TV producer, to create a series of 60-second video [[study guide]]s of literary works.<ref name=marketplace>((Cite web|title=CliffsNotes Goes Digital|url=http://marketplace.publicradio.org/display/web/2011/03/10/pm-cliffsnotes-goes-digital//|access-date=March 10, 2011|publisher=American Public Radio|archive-url=https://web.archive.org/web/20110727192539/http://marketplace.publicradio.org/display/web/2011/03/10/pm-cliffsnotes-goes-digital//|archive-date=July 27, 2011|url-status=dead))</ref>  In 2012, CliffsNotes was acquired by [[Houghton Mifflin Harcourt]].<ref name=about>((Cite web|title=About CliffsNotes|url=https://www.cliffsnotes.com/discover-about|website=CliffsNotes|access-date=June 20, 2015))</ref> In 2021, CliffsNotes was acquired by [[Course Hero]].<ref>((Cite web|title=Online education unicorn Course Hero buys CliffsNotes|publisher=Silicon Valley Business Journal|access-date=August 21, 2021|url=https://www.bizjournals.com/sanjose/news/2021/08/19/course-hero-buys-cliffsnotes.html))</ref>

== See also ==
* [[60second Recap]]
* [[BookRags]]
* [[Coles Notes]]
* [[Enotes]]
* [[Letts_and_Lonsdale|Letts and Lonsdale]]
* [[Masterplots]]
* [[Schaum's Outlines]]
* [[Shmoop]]
* [[SparkNotes]]
* [[York Notes]]

== References ==
((Reflist))

== External links ==
((Wiktionary|cliff notes))
*[http://www.cliffsnotes.com/ CliffsNotes website]

((Houghton Mifflin Harcourt))

[[Category:Houghton Mifflin Harcourt franchises]]
[[Category:Study guides]]
[[Category:Wiley (publisher)]]
[[Category:Book series introduced in 1958]]
[[Category:Wiley (publisher) books]]
[[Category:Textbooks]]
[[Category:Companies based in Lincoln, Nebraska]]
[[Category:2021 mergers and acquisitions]]

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