Serie de prácticas de mediación – La negociación del alto el fuego is the Spanish version of the HD Centre publication Mediation Practice Series – Negotiating ceasefire, initially published in March 2011. In this publication, author Luc Chounet-Cambas examines how ceasefires, as one element in a wider process, are negotiated by third parties and how such agreements may facilitate the transition from war to peace. He examines in particular the purpose of ceasefire agreements, challenges faced by mediators in their negotiation, and what options are available to them. Negotiating ceasefires is the third publication in the Mediation Practice Series, a collection of short publications which seek to provide mediation practitioners with insight into how challenges have been addressed by others in order to help them prepare for the demands of mediation. The series draws on feedback from mediators and their teams and aims to address the lack of adequate reference material and insight into other peace processes available in this field.