Report on the reconstruction of hill towns in the Irpinia highlands, Campania, Italy, seriously damaged by earthquakes in 1980. Contents: Irpinia, socio-economic aspects, historical background, and safeguarding the heritage legal instruments of reconstruction; overall reconstruction, including case studies of Calabritto and Conza della Campania; partial reconstruction, including case studies of Lioni and Teora; conservation in situ; case study of Sant'Angelo dei Lombardi; conclusions.