Well, it's occurred to me that I've been called a "professional" Transformer customizer. However would like to discuss the variety of opinions on what defines the word and classification of "professional" From my perspective, anyone who accepts money or payment for their trade is, by definition, a professional. Whether they sell 1 of that product or 1 million of that product, they are still a professional. As a noun, an online dictionary defines the word as : 1. a person practicing a profession 2. 1. a person who engages in some art, sport, etc. for money, esp. as a means of livelihood, rather than as a hobby 2. pro () 3. a person who does something with great skill Another online source defines it as so (adverb): 1 a: of, relating to, or characteristic of a profession b: engaged in one of the learned professions c: (1): characterized by or conforming to the technical or ethical standards of a profession (2): exhibiting a courteous, conscientious, and generally businesslike manner in the workplace 2 a: participating for gain or livelihood in an activity or field of endeavor often engaged in by amateurs b: having a particular profession as a permanent career c: engaged in by persons receiving financial return 3: following a line of conduct as though it were a profession This definition does not specify how much the professional earn through that trade. Whether it is full-time or a hobby, I feel if you can charge and be paid for your product, you are professional. Some may argue that a professional will accrue 100% income from his/her profession, but who's to say someone is "more professional" because they have no other source of income? The two keys to professional success are to understand one’s self and to understand one's business "environment" (one's clients, colleagues and staff, the market and the tools and expertise underlying one's daily practice). On a regular basis, Professionals need to be able to defend their own understanding of who they are and what they stand for. This comes from understanding of self, individual self and family and national self. Professionals need to be able to present with integrity and conviction their vision of reality so that they can continue to motivate themselves and others and get others to help them to solve problems. Their conviction about their own worth comes from their acknowledged expertise in reading the environment. I also read this online... The definition of a Professional In the words of Guy Le Boterf, a French expert on the development of competencies, "A Professional is a person who possesses a personal body of knowledge and of know-how which is recognized and valued by the market. Because of this market recognition, the Professional benefits from an advantage not available to other workers: he or she can personally manage internal or external^professional mobility, in a specific firm or in the international market. A person who is recognized as a Professional possesses a social standing which is larger than the specific job he or she holds down." The success of a Professional Service Firm rests on the ways in which its individual leaders demonstrate their professional foundation of values, attitudes and competencies.