Angel investors perform critical yet varied functions in the startup world. Conflicting depictions of angels reflect mythology as well as the wide range angel-related roles. In early stage finance, an "Angel Investor" is alternately characterized as hero / heroine (hence the name "angel"), unqualified interloper ("dumb money"), individual with transcendent capacities ("super angel"), or a member of an investing syndicate ("angel groups"). In addition to the variety of angel types, clear understanding of angel investing is challenged by a lack of transparency associated with angel investing. Angels are often individuals who prefer to retain a low public profile and seldom publicly disclose results from their early stage investing portfolio. Aggregate analysis of angel investments as an asset class is difficult to perform.