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We live in an era of communications and electronics. Everything is developing very rapidly every day. People need be informed fast, short and to the point. Our eyes began to be more careful in front of a computer or in front of a screen than before a newspaper or a magazine. I would dare affirm that the era of printed paper is nearby. Thus, in order to encounter these needs, databases were created. These are packages of information, tools and services that carry new discoveries from all fields of specialty. Databases are in electronic format, and stored on electronic media (CD-ROM) or can be accessible via the Internet. These include hundreds of prestigious professional journals and magazines, including an archive with the numbers of these from previous years, thousands of full articles, original and / or revised, abstracts, reviews, photos, description journals, bibliographic data, links to other articles or related databases, diverse queries on news published in a particular area (i.e. automatically receiving of emails for a specific item from a certain area). Periodical databases can be accessed by any person in any institution such as a library, university, organization, and so on, in front of available computers connected to the database with a password. Access to databases can be done simultaneously by several users from the same institution and simultaneously with other users who have purchased these databases. Interested institutions acquire a number of important databases in order to provide to their users access to new and prestigious sources of information. From scientifically point of view, this type of documentation processes has an important role in information, documentation and research. The advantage of regular databases are numerous: those interested can keep up with the latest information in different areas on national or international level, quickly get information to readers, can be accessed by multiple people simultaneously.

In the context of current development, while the trend is towards an open access to information, unrestricted by space and time, libraries must adapt to new changes existent in the society of information, in order to meet the needs of its users. Thus, with the development of computer systems, distribution of the networks especially in the universities and companies, and the advent of so many personal computers, libraries have begun to lose their customers. And this is due to the broadening of another branch of the electronic paper: the E-book. E-book or the electronic book has grown rapidly in recent years, especially in areas such as humanities i.e. dictionaries and encyclopaedias. E-book is an item that does not have to be bought, or sought between dusty shelves, and is not the absent book because it was borrowed by someone else. E-book is the book from the computer, within the computer, the book available for an infinite number of readers, the book that can be read easily and that can offer a superior graphic presentation of a classic pattern. E-book is now the way to preserve the oldest books, the best method by which a rare book can be multiplied and not having to be printed. It can be read by an infinite number of people simultaneously considering that it can exist on the computer for each person. In addition, e-book is similar to writing a book, only this time the writing is reduced; it allows a permanent return to the text, the ability to correct it, making ads, and restoring it without affecting the text or its layout. Thus, compared to the usual manuscripts with additions and doodles in the margins, an e-book will look cleaner and will have an arranged text. Prices for production of an e-book are much lower than the production of a book; including the investment that one author will have to do will be much smaller. And this is due to the diminishing of the waste paper and nerves, in case of returning to the text, being only necessary the pressing a few keys.

Undoubtedly writing contributed to the perception of history from other perspectives. Starting from clay tablets from Summer or Tartaria and until so known editing programs for today’s format text , the writing was obviously the most important form of communication of ideas, concepts and theories. One of the most popular concepts to which we refer when we refer to writing, is the book. Books were for centuries the only means of passing on information, regardless of their(religious, scientific, etc..), reflecting their technological evolution of humankind. Therefore, long time, books were written by hand, and then they have multiplied copyists. But the invention of printing (in Europe around 1450, China and Korea it was known long before), the flow of information has been simplified and books have become an accessible element for public, more than hitherto. There was a long pause in the evolution of the concept book that has remained virtually unchanged, despite the fact that printing technology has changed radically. The so-called break ended a few years ago, because books have entered in a new stage of development -the electronic book or eBook. This is the digital version of a work (either already existing in print or broadcast only in digital format) the version whose content can be viewed either through a computer or through other devices that allow the compatibilization of the systems. Several centuries the printing on led to accelerating evolution of the process of social development. This required a rapid and massive development of paper-making industry which led to the emergence and overcome of serious environmental problems. In efforts to replace paper, the technique successfully identified substitutes: radio, television, teletext, fax, computers, Internet, magnetic or optical supports, microfilms and photographs.