You cant learn a language from the book. All you need is practice and practice . Don't think You can learn a language from that particular book or that particular source .Just think programming language is same as human language .You cant simply learn English or French by reading a particular book.All you need is using it in day to day life. Code from scratch , extend its functionality try to build something that will make you little bit satisfied.And if you are thinking mastering a language as knowing whole language and using each element of programming language in practical coding ..YOU CAN'T. Or even if you can it might take 10-15 years.