․ Assistant Professor (March 01, 2023- ). Jeon-Buk National University LIS
․ Assistant Professor (March 01, 2021-February 28, 2023). Cheong-ju University LIS
․ Periodical Materials Management (September 01, 2015-February 28, 2016). Kyungpook National University LIS
․ Information Ethics (March 03, 2014-August 31, 2014). Kyungpook National University LIS
․ Digital Library Management (September 01, 2013-February 28, 2014). Kyungpook National University LIS
․ Information Ethics (March 04, 2013-August 31, 2013). Kyungpook National University LIS
․ School Library Media Center Management (March 02, 2009-August 31, 2009). Kyungpook National University LIS
․ Library Cultural Program Seminar (September 01, 2009-February 28, 2010). Dong-eui University Graduate School of LIS
․ School Library Media Center Management (March 03, 2008-August 31, 2008). Kyungpook National University LIS
․ School Library Media Center Management (March 02, 2007-August 25, 2007). Kyungpook National University LIS