This document provides an overview of crowdfunding practices and principles. It begins by defining crowdfunding as using an open online call to obtain financial resources in the form of donations or rewards in exchange for supporting specific initiatives. The document then discusses some of the advantages and disadvantages of crowdfunding. It outlines the typical steps in a crowdfunding campaign and describes the roles of crowdfunding platforms, fundraisers, and investors. The document emphasizes that crowdfunding platforms operate as multisided platforms that facilitate interactions between different user groups.