Explanation of downloading and reading a book about the subject of 30 internet

Book 30 subjects on the Internet, book values

and worth reading, in which the author 

presents the 30 subjects on the computer and 

the internet and the problems of the Messenger 

and the hacker and viruses of all kinds .. 

Begs the question then answer it in a 

professional manner according to novices and 

pros alike 

Download the book and discovered the secrets

 yourself