In this article we defend the Alphabet, its letters and its hand-written form, as vital elements for educational heritage, taking as a point of Visual Culture. We will analyse specifically doctors¿ handwriting, looking at the graphic component of their documents. We base our approach on the examples and analysis found in the selection in `Disease¿s Calligraphies: Doctors¿ Handwriting¿, an exhibition at which the visitors are considered actors, interpreters and constructors of meaning. In order to analyse this proposal we have used a case study methodology. In the preparation of the curatorial experience we introduce the concept of the educational turn in a way that the curator and all those involved designed the exhibition as a truly collaborative space. We encouraged the visitor to participate creating the conditions of the appropriation of the cultural heritage, with experiences for diverse participants, playing their perspectives, knowledge, narratives and emotions. Theories of the Artist-Teacher and also A/R/Tographies make up other valid theoretical references. We developed a model of curatorial style of exhibitions from the educational perspective, with marked emphasis on public participation.