Computer Skills

A man decided to improve his computer skills, and threw myself into it
with enthusiasm. Every week he would check out five or six instructional
books from the library.

After about a month the librarian commented, "Wow! You must really be
getting knowledgeable by now."

"Thanks," he said. "How can you tell?"

The librarian explained, "Only two of the books you're checking out this
week have 'FOR DUMMIES' in their titles."