The structure of financial statements allows the company to be evaluated from three points of view, or as Prof.
J. Ostaszewski, to look at them through "an eyepiece made up of three lenses."
The three-lens theory involves observing a company from three aspects:
economic,
Financial,
property.

Each of the lenses individually reveals a certain piece of knowledge about the company, but only by looking through all of them can a complete and reliable assessment be made, which is why they are increasingly used to assess a company's situation.
In small companies whose financial statements are not subject to mandatory audit by auditors, the report may be limited only to the balance sheet, the profit and loss account and the notes (
Accounting Law of 29 September 2004, as amended).