This article intends to introduce and present to readers and interested parties the Realism/Antirrealism debate. Those who were attracted by the content of the dispute, and still do not have enough knowledge to extract everything that the denser works of classic and consecrated authors have to offer, will certainly find here a good environment for the nomenclatures, the content and the spirit that permeates realists and anti-realists in their arguments. This article was based on knowledge produced by classic authors on both sides of the debate, such as Ernan McMullin, Anjan Chakravartty, Thomas Kuhn, George Berkeley, Karl Popper, Yuri Balashov, Paul Thagard, among others. The article was divided into three parts. The introductory chapter is...