You certainly heard when Ruby book sales were growing 1500%, and 700%, but I thought I'd bring it to your attention that it has quietly dropped to 53%. I don't bring this up to poke fun at the Ruby folks, but as supporting evidence for my own thesis that there is no 'next' Java and there is no 'next' framework.
Yeah, that would be a sucky business to be in, when your growth rate is ONLY 53%/year.
Mike Hendrickson - State of the Computer Book Market 2008, part 4 -- The Languages:
We reported last year that Ruby had grown nicely, had passed Perl and Python, and was knocking on the door for Visual Basic's spot. However, Ruby had the largest decrease in unit sales in 2008. ...
If you look at the five-year trend for the languages shown below, you can see that C# has been steadily growing year after year while Java has been going in the opposite direction during the same period. PHP, ActionScript and Python are the other languages going in a positive direction. Ruby, Java, and C++ had the biggest declines in unit sales during 2008, and Ruby dropped out of the top 10 languages.
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