Springer,18 Apress,17 Jhon Wiley & Sons,15 Packt Publishing,11 CRC Press,9 O'Reilly,6 Course Technology, Cengange Learning,5 Mc Graw Hill,4 Taylor & Francis Group,3 Springer Open,3 Wiley,3 Cambridge University Press,3 Apress Open,2 -2 Cengage Learning,2 Elsevier,2 McGraw-Hill,2 Auerbach Publications,2 Pearson,2 No Starch Press,2