Dorothy Zemach has taught ESL for over 18 years, in Asia, Africa, and the US. She holds an MA in TESL from the School for International Training in Vermont, USA. She currently concentrates on writing, editing, and publishing ELT materials and textbooks and conducting teacher training workshops. A frequent plenary speaker at international conferences, her areas of specialty and interest are teaching writing, teaching reading, business English, academic English, curriculum design, testing, and humor. Books written for Macmillan include Writing Sentences, Writing Paragraphs, Writing Essays, and Writing Research Papers; Get Ready for International Business 1 and 2; OpenMind Essentials and MasterMind level 2. Additionally, she is the series consultant on the five-level, ELTon nominated series Skillful.