Sans filtre is the result of applied research on communication tools for people with dementia. This editorial project brings together meetings, exchanges, analyses and the evolution of a formal, visual and sensitive language created for people in mental decline. Mainly based on a human experience, this work invites a change of perspective on dementia by focusing on the unimpaired capacities of people who are too often stigmatized and dehumanized by their condition. Structured as a diary, Sans filtre offers a personal and emotional journey into the vast subject of dementia.