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After reading and practising a few of the chapters I thought it was absolutely rubbish for teaching you basic java script don't get me wrong it does teach you a few basic java script protocols but to be fair its not pure java script and its not using java script software either. If you are wanting to learn java script using actual java script software then I would stay well away from this book since I have wasted my money and am now searching for a much better alternative java script book wise.