How can one prepare for an IRS tax audit?

The IRS calls this process " practicing before the Internal Revenue Service " which include all the maters connected with presentation to the IRS on behalf of the tax payer. Include preparing and filling documents, communicating with IRS and representing a client at meetings. The IRS also says An individual May appear on their own behalf An individual may represent an immediate family member A regular full-time employee of an employer may represent the employer.