According to O’Reilly Radar, sales of Java books have declined in the last 4 years by almost 50%. C# is selling more books from year to year and will probably level up with Java in 2008. Javascript is on the rise (due to AJAX, for sure) and PHP is on a surprising decrease path (although the job statistics indicate quite the contrary).
In 2007, the number of sold Ruby books was larger than the number of
Python books. In their article they qualify Ruby as being a “mid-major
programming language” and Python as “mid-minor programming language”.
However, after the announcement of Google App
Engine the number of Python
downloads from ActiveState has
tripled
in May. This should become visible in the book sales statistics, pretty soon.
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