With an average length of 5 and 10 pages, they are aimed at a large readership warned of their difficulty in reading by the mention under the title of each of them: easy, not very difficult, fairly difficult, difficult. Articles are listed in the Encyclopedia in order of insertion, but they are easily accessible by keywords on the home page and by a search engine. In addition, they are linked together by references [] which structure the body of knowledge.

Their publication has a dual purpose: to personalize each thematic article and to make known the researchers or professionals who work on each subject dealt with. This information should allow readers to know where to turn to supplement the knowledge gained from reading the articles and, if the authors wish, to initiate a dialogue with them. (see Your Suggestions)

Classified in alphabetical order of their authors, these data will facilitate, thanks to the search engine, the rapid gathering of a few works or scientific journal articles on a given subject, whether or not it is covered in the thematic articles. The references were selected solely on the basis of their quality and not of their relevance to current events, so as to encourage the development of a historical culture, essential for the understanding of present and future developments.

They belong to universities, research organizations, companies or associations. Some can be of great help to readers who have not found the knowledge sought in the thematic articles or the bibliography. Establishing contact with one of these centers could lead to the discovery of new sources of information and even to fruitful interpersonal relationships.