1) Inmates go through classification tests before prison entry and must adjust to a no-frills policy where prisons punish, not coddle.
2) Prison life involves deprivation of liberty, goods, relationships and autonomy under constant surveillance in overcrowded facilities.
3) Inmates develop unique subcultures and codes of conduct to navigate prisonization, with African American and Latino inmates more cohesively organized than whites.
4) Rehabilitation programs like counseling, education and vocational training provide benefits in and out of prison, but inmates face risks of reentry like reconviction due to lack of preparation for conventional life.