For parents wanting the peace of mind that their child is receiving the proper education, extracurricular tutoring can be the preferred method of extending educational training beyond public school. There is one main requirement for starting this type of instruction business: You must be an expert in the field in which you intend to teach or tutor. Beyond that, this business is very simple to start. It can be operated on a mobile basis by going to the client or from your home office with the client coming to you. Building a customer and referral base for this type of business can be accomplished by joining community business associations and parent teacher associations. Networking and self-promotion are probably the best marketing strategies. Tutoring is a competitive industry and to gain the upper hand requires explanation and disclosure of credentials firsthand.