That way to the left

"Arrows are popular due to their fast and almost universal readability and are being used in many forms and functions. Their visual variety makes it hard to compare form and meaning and I believe that for these reason we will soon have problems reading arrows precisely. This is why I did a formal and semantic study of arrows in a systematic way that allows direct comparison. In the context of an unsure future of the sign, That Way to the Left is basis and tool for the use of a future arrow."--Author's website.