John is an amazing teacher. He creates a comfortable atmosphere where I can speak without feeling nervous. He always encourages me to express my thoughts and gives me plenty of opportunities to practice speaking. I feel more confident speaking English after every lesson. I highly recommend him!

John is always amazing. His english is clear, so anyone can understand him and learn english from him.

everyday John is more and more amazing. I recommend him to everyone who wants to be confident in english.

He is a very nice teacher.

I still recommend John to everyone who need to improve their english.

Talking about science and academia with John is always enjoyable. Recommended for any college or grad students out there.