Do you know the name for the symbol you sometimes see that looks like a pointing finger? It's called a manicule (from the latin root for hand, 'manus'). It's also known as an index or "printer's fist" (despite not being an actual fist). There are surprisingly few books about manicules, despite being rather lovely. I like to collect them, and here's a selection. For more, take a look at the Flickr manicule group here.