In this handbook, we are going to use the term DIFABILITY, (which is the outcome of a project Eurogaming2010) instead of DISABILITY. The term comes from putting together the words: different + abilities. Our intention is to emphasize the abilities that these persons possess, not the lack of certain abilities. The purpose of the handbook is to increase knowledge and awareness about the different types of difabilities and how youngsters affected by them can be involved in projects.