Real Earnings MoM tracks inflation-adjusted pay change from the prior month for US private nonfarm payroll jobs. It is published by BLS (the federal labor statistics agency) from CES payroll records (Current Employment Statistics, a monthly survey of business establishments).
It covers 2 groups: AE (all private employees, tracked from 2006) and PE (production and nonsupervisory employees, tracked from 1964). Pay is deflated by CPI (a consumer price gauge) to show buying power. It is not take-home pay, and not pay for a typical worker.
It excludes government, farm, and self-employed jobs. Values are expressed in constant 1982-1984 dollars, with no target level.