The Official Guide to the TOEFL Test with 4 Full-length Authentic TOEFL Practice Tests on DVD-ROM About the Author Educational Testing Service (ETS) (Princeton, NJ) advances quality and equity in education for people worldwide by creating assessments based on rigorous research. ETS serves individuals, educational institutions and government agencies by providing customized solutions for teacher certification, English language learning and elementary, secondary and post-secondary education, as well as conducting educational research, analysis and policy studies. Founded as a non-profit in 1947, ETS develops, administers and scores more than 50 million tests annually including the TOEFL and TOEIC tests, the GRE tests and the Praxis Series assessments – in more than 180 countries, at over 9000 locations worldwide.