Book selling

To write books is easy, it requires only pen and ink and the ever-patient paper. To print books is a little more difficult, because genius so often rejoices in illegible handwriting. To read books is more difficult still, because of the tendency to go to sleep. But the most difficult task of all that a mortal man can embark on is to sell a book.

From a poem by Felix Dahn paraphrased by Sir Stanley Unwin.