I have observed many people today in the library. However, one in particular...

A gentleman came in, looked around, and then asked for books on internet and database security.

Me: I asked him if he had look up any in the catalog.

Him: "No, I do not know how to use it."

"ok sir, let me show you"

We walk over to the computer, the screen is blank.

He looks very confused "Is it broke?"

I said "No, just move the mouse"

Still looking confused, says oh.

 After working with him for only a few minutes I discovered this man only knew extreme basic of computers. He did not know he needed to click search for a search or even click enter.
As I find him a few books, he tells me he is going to take an exam for his database security and internet security certifications next week.

Run

People can't read

It takes a large number of computing components to run an efficient library system. From time to time those systems fail. As a "front line" person at the library, I often troubleshoot technology problems.  

After numerous failures of one machine in particular, our official IT support was called in. They had reported all was well, and "it's working now".  A few hours later another failure occurred, so I decided to investigate. After opening the cabinet and letting the plume of dust clear (cough),

I came across this note on the side of the CPU.

It is a bit fuzzy, but as you can read here, it says defective part. 

Librarian thought bubble - Even in a library, reading is optional.