There is little doubt that 2020 was the year of podcast. It seemed that they were born like mushrooms in autumn and at all levels. From the professionals produced by the media to the most homemade. But while all this was happening, another communication tool was gaining followers despite not being exactly a novelty. The newsletter, traditionally used to develop the marketing strategies of companies, has been diversifying in recent times. Now it can be from a personal letter to a means of communication in itself, but above all a moment of respite in the inboxes plagued with work emails and spam that manages to bypass the filters.