Mini Penguins
These little books are really called Penguin 60s (rather than mini-Penguins) but whatever you want to call them, they are a great idea.
They're so small you can put them just about anywhere: stuff a couple in your handbag; put one in your pocket; cram several in your backpack; take a handful in your luggage; fit one into your document folder when travelling; keep one in your wallet; shove a few in your gym bag; be inventive.
You can whip one out and read it on the bus, on the train, on a plane, in a car, at morning teatime, during lunch break, at the doctor's or dentist's; while waiting for a tardy date; in a bar; before a rugby game; at the park; in the playground; again, be inventive.
Come in and buy a few or a lot. They're not only small, they are cheap. How can you resist?