The Professional Portfolio
A professional portfolio is the evidence of your skills, achievements, and professional experience. Your résumé /CV. Portfolios come in two varieties: a Growth and Development portfolio is your main portfolio. It holds all evidence of your education and achievements and is for your eyes only, and a Best Work portfolio or Profile is a collection of materials you select from your Growth and Development portfolio for review by others for a specific purpose, such as a promotion or an award.
How do I use my portfolio?
You’ll use your professional portfolio to plan your continuing education and professional development. You can also use your portfolio to market yourself. When applying for a career-ladder promotion, a new position, or admission to an education program, review your portfolio and select the appropriate materials for submission. You can do the same when you think you deserve an award or other recognition.
Several professional associations are either using portfolios for certification or developing a plan to do so. Also, several states have considered or are considering requiring a professional portfolio for re-licensure. So you may be using your portfolio to select evidence for these purposes, as well.
For the purpose of this course the following are the tags required for your professional portfolio:
Part 1

Professional letter examples. It is your cover letter, the one you send as an invitation to consider you as a candidate for work position, or research grant recipients as two examples of its use.

https://www.indeed.com/career-advice/cover-letter-samples/nurse-practitioner
http://www.coverletter.us/nurse-practitioner-cover-letter/