Abstract: This paper summarizes important issues regarding e-books, such defining what e-books are, formats of e-books, and reader software. Then, explains how e-books are built and published, and how e-books libraries are located on the internet. Advantages and disadvantages of e-books are addressed, and finally Impacts of e-books on people (users) are discussed based on analysis of a conducted questionnaire. Appendix A contains the questionnaire questions where appendix B contains questionnaire results analysis by charts.