Albert Badía, from the Department of Pharmacology and Therapeutics of the Faculty of Medicine of the Autonomous University of Barcelona, Alfonso Domínguez-Gil, from the Department of Galenic Pharmacy of the University of Salamanca, and J. Garzón, from the Cajal Institute of Madrid, edited Dr. Antonio Esteve’s Monograph number 8. This monograph includes all topics discussed in the round table held on May 19, 1988 in Barcelona under the title Data treatment in pharmacology. Examples of studies included are the characterization and quantitation of pharmaceutical antagonism, data treatment in bioavailability studies or in pharmacokinetics, and computational analysis in pharmacology.