"Calypsos is a strategic partnership under Key Action 2 (KA 204) of the European Union's Erasmus+ programme, with reference number 2016-1-ES01-KA204-025656, entitled ""Support for Social Inclusion, Specific Needs for Educational Support and Improvement of Basic Skills for Prisoners in Europe"", which took place between September 2016 and November 2018.The objective of the project was to provide European regional and national institutions responsible for education in prisons with strategies for socio-educational innovation, as well as related personnel, in which innovative learning situations are contemplated that, through strengthening their inclusive character, achieve the ultimate goal of increasing school success rates among prisoners, as well as raising awareness and engaging stakeholders linked to education in prisons in EU countries through impact and visibility activities.It was attended by 9 different institutions, each of which offered professionalism in a specific field that was compatible and enriching for all others.-Santa Cruz de Tenerife Adult Education Centre, a public educational institution dependent on the Government of the Canary Islands, which coordinated the project.-Four public universities: La Laguna (Canary Islands-Spain), Almeria (Andalusia-Spain), Sapienza (Rome-Italy) and Do Minho (Braga-Portugal). -General Secretariat of Penitentiary Institutions of the Government of Spain, through the Penitentiary Centre of Tenerife, with the greatest experience in the treatment of prisoners.Instituto degli Innocenti, a public body located in Florence (Italy), which promotes the active rights of children and adolescents and everything related to juvenile justice.-ADIS Meridianos, from Seville, and Plena Inclusión Canarias, two Spanish NGOs that work to support groups of inmates, ADIS also manages youth internment centres.Considering that an important part of the prison population can be classified as having specific needs for educational support (NEAE), the relationship of these NEAE with academic performance was addressed from the detection of deficiencies in executive functions (FE), mainly cognitive deficits, difficulty in paying attention, in structuring thinking, deficits in working memory, scarce self-control, difficulty in solving problems, etc. The study also examined the relationship of these NEAE with academic performance from the detection of deficiencies in executive functions (FE), mainly cognitive deficits, difficulty in paying attention, in structuring thinking, deficits in working memory, scarce self-control, difficulty in solving problems, etc. It was suggested that the improvement in these FE could increase the current low success and degree rates. To cover the objectives of the project, 8 intellectual products were developed, from a meta-analysis containing a quantitative review of the relationship between the antisocial behaviour of delinquents and the neuropsychological measures of executive functions, a study and an evaluation report from the neuropsychological point of view of the NEAE-related functions of adult inmate students to various reports, aimed at decision-makers in the educational and penitentiary spheres, as well as professionals related to the aforementioned spheres.The meta-analysis included 58 independent studies, 30 with standardized comparison group and 28 with comparison group among prisoners in which a total of 3210 participants have been evaluated.For products 2 and 3, data were obtained from a total of 415 participants (301 prisoners and 114 standardised) from 5 European prisons, 19% of whom had a juvenile justice background.The rest of the study is devoted to establishing an overall intervention strategy and provides a series of guidelines and strategies for intervention and socio-educational innovation to enable the establishment of appropriate policies and for prison technical, guidance and teaching staff, the ultimate aim of which is to increase school success rates among prisoners in EU countries. Visibility and transferability to other European countries to achieve the greatest impact and dissemination of their results and products is guaranteed, based on the solidity of the products created and, so far, with the whole series of dissemination activities that have been carried out, including the constant contact of the partner institutions with their respective stakeholders, the three multiplier events organised, the advocacy letter sent, the website www.calypsos.eu and, from now on, also the project results platform. All this will allow the material and the recommendations to be available to any person or institution related to the subject of the project. The impact will not stop with the completion of the project; rather, on the contrary, it will become larger. Educational changes are always slow and need a lot of time to become effective and generalized. But when the improvements come, they always remain."