The measure of a bookstore is not its receipts, but its friends,” he says, “and here, we are rich indeed. - Robin Sloan

"Hi there...Let me ask you a question...How would you find a needle in a haystack?"

The first-grader pauses, pensive, tugging on the green yarn around her neck. She's really thinking this over. Tiny gears are turning; she's twisting her fingers together, pondering. It's cute. Finally she looks up and says gravely, "I would ask the hays to find it."
...
Yes, of course. She's a genius!
...
It's so simple. Of course, of course. The first-grader is right. It's easy to find a needle in a haystack! Ask the hays to find it!

The right book exactly, at exactly the right time.

"Some of them are working hard indeed."
"What are they doing?"
"My boy!" he said, eyebrows raised. As if nothing could be more obvious: "They are reading."