PIÑEIRO, Elena Creyentes, herejes y arribistas. El radicalism en la encrucijada, 1924-1943, Prohistoria Ediciones, Rosario, 2014, 200 pp. - Col. Universidad – 36. This book is the result of a rigorous academic research in the field of argentine political history for a doctoral thesis whose mentors have been Ezequiel Gallo and Francis Korn. It is about a political party- Unión Cívica Radical Antipersonalista- born as a schism between radicals in 1924 and established in opposition to Hipólito Yrigoyen’s partiality. Up to the present, studies about argentine radicalism have scarcely analized this party so this work offers a detailed description of the backdrop of argentine politics in the period with the focus set on power disputes inside both radicalisms.