I know a guy who took a contract teaching job for 3 years in West Africa 45 years ago. He had nothing to do in the evening … except write a textbook. He made half a million pounds from it within 10 years, a lot of money back then.
I know a guy who took a contract teaching job for 3 years in West Africa 45 years ago. He had nothing to do in the evening … except write a textbook. He made half a million pounds from it within 10 years, a lot of money back then.