Smart science"How smart phones work?" "How do you use apps?" "Smart learning" solves the problems of the general public clearly.Part 1 "Smart life starts" Its a great guide to everything from how to choose a smartphone to how to use an app, and its also a part of a knowledge warehouse that makes it easy to digest the history of smart devices. (Housewives, employees, students, disabled people) and by age group (infants, young people, old people, etc.) apart from the existing categories divided into life, productivity, entertainment and education. And utility apps.Part 2 "The Present and Future of the Smart World" is a part of the "Cloudcom The technology base that is included in Future, Augmented Reality, and SNS is being solved with easy-to-understand diagrams and abundant examples. It is possible to use smart devices and data anytime and anywhere by linking with wireless network, In addition to examples of various technical uses of cloud computing, we will discuss how large IT companies such as Google, Apple, and Microsoft are preparing for the era of cloud computing. It is important for the stakeholders to pay attention to the countermeasures of domestic companies.