David Riley was a teacher, writer and publisher of business and ELT materials. He was well-known and respected in the ELT world for his creation of materials for a range of publishers, big and small. Practical Grammar was his original idea. John Hughes has taught and worked forover 15 years in Poland, Italy, Austria,Malta, the UK and the USA. He is a wellknownELT resource writer and is authorof various coursebooks for studentsincluding the areas of exam preparation and businessEnglish.