Page 5 to 9: Éric Bidet and Nadine Richez-Battesti – Editorial. Social and solidarity economy and training: multiple dynamics | Page 11 to 20: Éric Bidet and Nadine Richez-Battesti – The social and solidarity economy in debate: when action rhymes with training | Page 21 to 30: Laëtitia Lethielleux and Collectif Riuess – The inter-university network of the social and solidarity economy: cooperating for training and research | Page 31 to 44: Jean-François Draperi – From reasoned autobiography to cooperative autobiography | Page 45 to 55: Laurent Pujol and Hugo Gaillard – Training competent volunteers | Page 57 to 68: Éric Bidet, Olivier Boned and Lydie Grudé – Professional reorientation and skills development: the contribution of VAE in the social and solidarity economy | Page 69 to 77: Elisa Braley, Catherine Da Costa and Yann Van Acker – Twenty years of training in the SSE: the case of Uniformation | Page 79 to 89: Olivier Palluault and Laura Douchet – Supporting and training in disruptive social innovation | Page 91 to 101: Nadine Richez-Battesti and Julien Maisonnasse – DLA: when support takes on a formative dimension | Page 103 to 115: Mathilde Renault-Tinacci – What do we really exchange with skills sponsorship? | Page 117 to 127: Danièle Demoustier – SSE management tools and training dynamics | Page 134 to 146: Paul Santelmann – Integration policies and qualifying training: what consistency? | Page 147 to 154: Jean Frayssinhes – The role of cognitive biases in learning | Page 155 to 158: Readings.