Tim O’Reilly shows how sales of O’Reilly’s books indicate a popularity of computer technologies. For example, In terms of computer languages we can see following dinamic of sales in compare with the same period of last year: PHP: +16% C#: +2.5% C/C++: -4% Python: -9% Java: -10 Javascript: -12% Perl: -14% Visual Basic: -23% As we can see, popularity of Java books and Perl books […]