Creative accounting is a euphemism referring to accounting practices that may follow the letter of the rules of standard accounting practices, but deviate from the spirit of those rules with questionable accounting ethics—specifically distorting results in favor of the "preparers", or the firm that hired the accountant. They are characterized by excessive complication and the use of novel ways of characterizing income, assets, or liabilities, and the intent to influence readers towards the interpretations desired by the authors. The terms "innovative" or "aggressive" are also sometimes used. Another common synonym is "cooking the books". Creative accounting is oftentimes used in tandem with outright financial fraud, and lines between the two are blurred. Creative accounting practices have been known since ancient times and appear world-wide in various forms.