Estimated Reading Time: 5 minutes Your design portfolio is your chance to show off your skills, expertise, and creativity to potential clients and employers. It’s important to include a variety of mockup items that showcase your abilities in creating business stationery designs. From business cards to letterheads to envelopes, these items are essential to building a strong and comprehensive portfolio. In this article, we’ve compiled a list of 20 must-have business stationery mockup items that you should include in your portfolio to impress potential clients and employers.