At Least Know This publishes a 24-page review for Auditing and Attestation. Our books are meticulously researched, and we write and presented with simplicity and clarity. We do not believe students need to memorize 300 pages of review to pass the CPA exam. And, given fewer pages, we find that students have greater retention. To shorten our books, we use wider page margins, decrease font, and eliminate redundancy. We use tables because they structure and compare information efficiently. We teach with examples. And we improve the quality of our writing. The result is AUD in 24 pages. Definitive tables for Compilations, Reviews and Audit Sampling. Precise abridgment and arrangement of Auditing Standards. Includes blueprint updates effective July 1, 2021, most notably to Information Technology. Includes SAS No. 134 and SAS No. 135, as well as other statements available for testing January 1, 2022.