This book describes the implementation of one of the most useful techniques in Gestalt Psychotherapy for the emotional processing of unfinished business: the empty chair.The author presents a detailed methodological proposal, which includes the use of incomplete sentences to facilitate contact and expression of the unresolved emotional need.It is a useful text for clinical psychologists practicing psychotherapy or initiating their practice, as it explains the elements that should be taken into account to maximize the therapeutic effectiveness of this valuable technique.