Media, is it ok to watch only what we want to watch? There are so many contents to watch for teenagers, but they tend to watch only what they want to watch these days. In the middle of media turmoil like youtube, social media, messenger applications, etc, teenagers nowadays have narrowed down their content choice and lacked the ability to critically accept the contents. This book is an introductory book for media literacy showing how to independently use media in a period when A.I rules. In this book, the writer emphasizes the ‘fact checking’, which we sort out false information spread over in the form of fake news and comments, which attract readers with provocative titles. The ‘media literacy ability, which make people read media in a critical way in today’s overflowing time with too much information’, is what today’s teenagers must have. The writer also introduces how to improve media literacy ability to evaluate good news and information going beyond fact-checking. In addition, this book also presents how to produce decent quality contents for teenagers who will live not just as consumers but also as content creators.