Overall, the market for programming languages was down -6.27% in 2010 when compared with 2009. There were 6,303,125 units sold in 2009 versus 5,931,452 units sold in 2010, which is a decrease of -371,673 units. Java experienced the biggest gain in units, at 28,633 more units in 2010 than 2009, while PHP occupied the opposite end with the biggest decrease at 38,614 fewer units year-over-year.
Before we begin to drill in on the languages, we thought it would be best to explain our "language dimension." When we group books by their language dimension, we categorize them by the language used in …[Read more]