The FASB offers tutorials and help on the Codification.
CPA Jeff Sailor has two free tutorials on YouTube
Extensive guide, with exercises, is designed for learning more about the Professional View of the Codification.
The American Institute of CPAs (AICPA) offers a PowerPoint slide show about the Codification, to help users with the organization of the Codification and its contents.
Guide offered by the accounting firm PWC
On July 1, 2009, the Financial Accounting Standards Board (the FASB), approved the Accounting Standards Codification (ASC) as "the single source of authoritative U.S. accounting and reporting standards, other than guidance issued by the Securities and Exchange Commission (the SEC)."
The Codification superseded (replaced) all then-existing SEC accounting and reporting standards by reorganizing the existing authoritative literature.
Now, only one level of authoritative U.S. GAAP exists, other than guidance issued by the Securities and Exchange Commission (SEC). All other literature is non-authoritative.
The FASB Accounting Standards Codification (ASC) reorganizes accounting literature.
In addition to General Principles (Topic 105), offering an explanation of Generally Accepted Accounting Principles (GAAP),
the Seven financial accounting and reporting categories, which are numbered, are:
The seven categories have topics, and the topics have subtopics.
A "SEC Section" is included for topics that are affected by SEC regulations.
The subtopic Capital Leases offers an example of the organization:
Toerner, M. C. (2009). A guide to using the Accounting Standards Codification. The CPA Journal, 79(2), 20-25. Toerner is a CPA and an accounting professor.
Ford, C.O. and Thomas, C. William. (2008). Test-driving the Codification, Journal of Accountancy. 206(2), 62+. The authors are CPAs and accounting professors.