Tongue twister book by
Dr. Seuss, published in 1965. This was my all time
favourite book when I was a kid, and I still have the copy I got when I was
little. It's divided up into several sections in which
Mr. Fox tries to get
Mr. Knox to say complicated tongue twisters. They start out fairly
easy, but get harder as you keep reading.
"Let's have a little talk about tweetle beetles..."