This document discusses adjusting entries and the accrual basis of accounting. It explains that adjusting entries are necessary to adhere to the accrual basis and matching principle. This involves recognizing revenues and expenses in the periods they are earned or incurred, rather than when cash is received or paid. The document outlines the nature and purpose of various adjusting entry types, including prepaid expenses, unearned revenues, accrued revenues, and accrued expenses. It provides examples of adjusting entries for each type to properly state account balances and prepare an adjusted trial balance in accordance with accrual accounting.