The book "Pennsylvania Journal of Prison Discipline and Philanthropy (Volume IV, Issue II, April 1849)" by the Philadelphia Society for the Relief of the Poverty of Public Prisons is a unique publication that is devoted to the problems of the penitentiary system and humanitarian efforts in prison management. This magazine reflects various aspects of prison life, studies of social conditions of imprisonment, as well as proposals for improving the situation in prisons. Each issue of the magazine is a valuable source of information about the development of the penal system in the mid-19th century and about society's efforts to ease the conditions of prisoners and their rehabilitation. The Pennsylvania Journal of Prison Discipline and Philanthropy is an important forum for dialogue between government agencies, charities, and academia to address societal issues through improving incarceration and incarceration.