If you are lucky, you can find a book store with books from this series from Penguin called Great Ideas. I was reading this one from Orwell today.
Penguins refers to them as books, but in a number of cases they are excerpts or essays or something short of a book. But this is quibbling. They are a nice price and the design of the books is superb. The size of them makes them perfect for short trips. And since there are so many of them, you are bound to find at least one that you want to read. For more info, see Great Ideas – Penguin Books