Peter Killingley graduated from Durham University in the UK in 1982. He has been teaching English since 2003 and has taught in Europe, North Africa, the Middle East and Asia. He particularly enjoys teaching exam classes, having first started preparing students for the IELTS exam in 2003. He has a CELTA(R) and a Trinity Diploma and is currently working for the Australian Centre for Education (ACE) in Phnom Penh, Cambodia. Mary Kuder graduated from the University of Minnesota in Minneapolis, Minnesota, USA, in 1982. More recently, in May 2015, she received her Master of Arts in English as a Second Language (MA ESL) from Hamline University in St. Paul, Minnesota, USA. She is the editor and researcher of the Glossary of Compensation and Benefits Terms (WorldatWork, 2002), published with the Library of Congress, and the editor of the eBook 100 Points to Consider Before Moving or Retiring in Ecuador (Crowder, 2013). She has been teaching English since 2013 and has taught in the USA, Ecuador, Cambodia and Mexico. She is currently a professor of English at Centro de Idiomas, Universidad Technológica de la Mixteca in Oaxaca, Mexico.

Mary Kuder graduated from the University of Minnesota in Minneapolis, Minnesota, USA, in 1982. More recently, in May 2015, she received her Master of Arts in English as a Second Language (MA ESL) from Hamline University in St. Paul, Minnesota, USA. She is the editor and researcher of the Glossary of Compensation and Benefits Terms (WorldatWork, 2002), published with the Library of Congress; and the editor of the eBook 100 Points to Consider before Moving or Retiring in Ecuador (Crowder, 2013). She has been teaching English since 2013 and has taught in the USA, Ecuador, Cambodia, and Mexico. She is currently teaching English in the United States.