She argues that 'help needed' signs do not necessarily indicate a job opening; more often their purpose is to sustain a pool of applicants in fields that have notorious rapid turnover of employees. She also posits that one low-wage job is often not enough to support one person (let alone a family); with inflating housing prices and stagnant wages, this practice increasingly becomes difficult to maintain. Many of the workers encountered in the book survive by living with relatives or other persons in the same position, or even in their vehicles.