I'll give you a link that will help you in writing your letter of inquiry. Start writing it by telling the reader why you are writing. In the body of the letter, market your accomplishments. You might describe a problem relevant to the industry. State how you handled it and what results you achieved. Use some of the statements from Part One to describe your skills. Visit this link for an example of one: http://www.jobmonkey.com/main/html/samples_page.html.