Keith S. Folse

Keith S. Folse is the author of Keys to Teaching Grammar to English Language Learners and 4 Point: Listening for Academic Purposes; he has also written more than 70 books for ESL teachers and students. 

Books

4 Point Listening for Academic Purposes
4 Point Listening for Academic Purposes by Folse, Lockwood 978-0-472-12618-0
Clear Grammar 4, 2e
Clear Grammar 4, 2e by Folse, Mitchell, Smith-Palinkas, Tortorella 978-0-472-12865-5