Rover.

I should say that I’m often not a reader of books from one end to the other but a rover, as a result of more than half a lifetime of doing research in books, where you’re there not just for the pleasure (though there is often considerable pleasure) but to find out some particular thing. Also I get interrupted a lot, and misplace books in this house of books, and so one way or another I’m usually reading about a dozen books at a time.

Rebecca Solnit