Continuous audit involves a detailed examination of all transactions by the auditor attending at regular intervals, such as weekly or monthly, throughout the accounting period. It is applicable for businesses with large transaction volumes, those requiring monthly/quarterly financial statements, or those lacking an effective internal check system. Advantages include easy and quick discovery of errors, the auditor's knowledge of technical details to help clients, and quick presentation of final audited accounts. Disadvantages are the high cost of regular auditor attendance and potential lack of independence due to close involvement throughout the year.