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Well, first you need to do your research, very important step in understanding what your client needs and wants are in order to begin the process of designing a logo. Next step is, brainstorming your ideas based on what you have gathered in your research. Third step,  present your ideas that you have brainstorm to your client. Fourth step, completion of the logo, having the client finalize and being happy with the final outcome of his/her logo design. Last step is to follow up with your client after having successfully completed in creating a logo. To read  more about the 5 steps click on this link http://graphicdesignblender.com/the-5-phases-of-logo-design