Hi everyone,
Having recently obtained an i-2-i online tefl certificate and with 28 years experience in different businesses (including SAP trainer) both freelance and as an employee, I'd like to teach english to companies and I live in France. What are the best 'course books' to use for beginner, intermediate and advanced? Is it a good idea to create my own materials rather than have the outlay of books? How have other teachers approached this? Also do I need to register as a Teacher of English as Foerign Language in France?
Thank you for any tips and advise

Best wishes
Little Flea