Jiles received a BSc from the University of Exeter, followed by a MSc from the University of Birmingham, a PhD from the University of Hull, and a DSc from the University of Birmingham. Jiles was formerly Professor of Magnetics at Cardiff University and the director of the Wolfson Centre for Magnetics there from 2005 to 2010. Prior to that he had been at Iowa State as Anson Marston Distinguished Professor of Engineering. Jiles was named a Jefferson Fellow at the United States Department of State in January 2016, a post that is set to begin in August and last for one year.
He has been the editor-in-chief of IEEE Transactions on Magnetics since 2005. He is a Fellow of the American Physical Society, the Institute of Electrical and Electronics Engineers, the Institution of Electrical Engineers, the Institute of Physics, the Institute of Materials, the Institute of Mathematics and its Applications, the Magnetics Society, and the Royal Academy of Engineering.
- Introduction to Magnetism and Magnetic Materials, London and New York: Chapman and Hall Publishers,. (in 535 libraries according to WorldCat)  1st edition 1991. 2nd edition 1998.
- Review, Choice, v29 n05
- Introduction to the Electronic Properties of Materials, London and New York: Chapman and Hall Publishers,. First edition 1994. Second edition 2001.
- Introduction to the Principles of Materials Evaluation, Boca Raton, Florida: CRC Press, 2007.
- Dieterle (4 June 2010). "Jiles Returns to Iowa State to Lead Electrical and Computer Engineering". Retrieved 23 May 2013.
- Muller, Sarah (January 12, 2016). "Professor represents Iowa State at national level". Iowa State Daily. Retrieved January 23, 2016.
- Gray, Elizabeth (January 21, 2016). "ISU engineering chairman appointed to Department of State". Iowa State Daily. Retrieved January 23, 2016.
- Ascher, Brock (September 18, 2014). "Jiles elected to Royal Academy of Engineering". Iowa State University. Retrieved October 7, 2014.
- Day, Brian (October 21, 2013). "Jiles' chess competition raises money for United Way". Iowa State Daily. Retrieved October 5, 2014.
- WorldCat item record
- Faculty profile at Iowa State