The main aim of the article is to classify and discuss the mechanisms of creating post-truth in the media. On the selected examples, I characterize and describe the functioning of 10 mechanisms that I distinguished during the research. I divide them into mechanisms related to actions taken by the sender and those resulting from his omission. It simplifies to understand how these mechanisms
are used in media and that creating post-truth messages does not have to be intentional. I also compare the term „posttruth” with other terms such as: manipulation, deception or „bullshit”. I do it in order to find common points and differences between them which enables to understand the complexity of the problem also on a semantic basis.