The Financial Accounting Standards Board (FASB) establishes and improves standards of financial accounting and reporting. FASB standards are officially recognized as authoritative by the American Institute of Certified Public Accountants (AICPA), and the Securities and Exchange Commission (SEC).
Other organizations that help determine accounting standards include the Public Company Accounting Oversight Board (PCAOB) and the Government Accounting Standards Board (GASB), the International Federation of Accountants (IFAC), the International Auditing and Assurance Standards Board (IAASB), and the International Accounting Standards Board (IASB).
Standards are conventions, rules, and procedures necessary to define acceptable accounting practice at a particular time. 
 
GAAP, or Generally Accepted Accounting Principles, are a set of guidelines for companies to aid in preparing financial statements according to a standard.
GAAS, or Generally Accepted Auditing Standards, are auditing standards for auditors to help ensure transparent and unbiased auditing.
 Wiley GAAP 2016
                    
        
            Wiley GAAP 2016
        
        
        
            
        
                    
        
                
                            
        
        
                     Wiley Practitioner's Guide to GAAS
                    
        
            Wiley Practitioner's Guide to GAAS
        
        
        
            
        
                    
        
                
                            
        
        
                     Wiley Not-for-Profit GAAP
                    
        
            Wiley Not-for-Profit GAAP
        
        
        
            
        
                    
        
                
                            
        
        
                     Wiley GAAP for Governments 2015
                    
        
            Wiley GAAP for Governments 2015