Placing your logo design and phone number on the upper right hand corner of the front of the tshirt, and the logo design on the back of your tshirt along with your website address, gives a very uniform and professional appearance. Placing your logo design and contact information on the front center of your tshirt design makes a highly visible and impactful advertisement. For special events or occasions, center your logo on the front of the t-shirt, and place a special message on the back as a sure way to get your message across.