1. An interactive electronic operating system for science, engineering and other technical and professional books, comprising: a computer platform having a single viewing screen, the single viewing screen for displaying pages of an open book; a digital book having contents selected from the group consisting solely of a scientific topic and a technical topic stored in the computer platform; at least one image on the viewing screen for replicating a complete open page of the digital book; an icon menu on the viewing screen including: a page flipping icon on the viewing screen for allowing backward flipping of pages of the digital book, and forward flipping of pages of the digital book; a dynamic index icon for creating and using a dynamic index that allows the user to search for a keyword and search string in a specific chapter, section, and displayed pages, save search results to the dynamic index, add a new item to the dynamic index, and delete an existing item from the dynamic index, the dynamic index including a default index created by a publisher and an arrow to return to an original location; and a dynamic table of contents icon on the screen that activates a dynamic table of contents module, the dynamic table of contents module allowing the user to customize a table of contents of sections and chapters and parts of the open book, the dynamic table of contents module comprising: a default table of contents; a dynamic table of contents selectable by the user, each dynamic table of contents identified by at least one of a table of content name, description, creation date and last modified date, each dynamic table of contents including selectable chapters and sections that are modified by the user and saved in a database; and a customized table of content profile developed by an instructor for a course, the customized table of content profile including chapters and sections designed by the instructor to meet the instructor's course and imported into the dynamic table of content of a student in the course, the digital book material adjusted in accordance with the selected customized table of content profile.