A collection of highlighted works that a person has completed throughout his or her career.

A portfolio is a collection of works that a person has compiled throughout his or her career, highlighting his or her accomplishments. Works within a portfolio may consist of graphics, text snippets, coding projects, or other works. Portfolios may take physical form (as a binder with graphics, text samples, etc.) or digital form (as a website).

Questions with this tag may refer to the creation, the maintenance, or the distribution of one's portfolio.

Resources on building portfolios

Carol Tice - 5 Steps to Building Your Freelance Portfolio From Nothing
Jake Rocheleau - How To Put Together a Solid Freelance Portfolio