It's always been a pet peeve of mine when informational books or articles don't provide pronunciation to words. This could be anything from ancient Egyptians to Latin words in biology. I find myself mentally stumbling over the words every time I come across them, which slows me down. I only see pronunciation given in children's books and some textbooks. I wonder why. It's hard to intelligently discuss what you've learned with others when you don't know how to say it.

In your opinion, does it cheapen a book or make it juvenile to provide pronunciation? Just curious.