Purchase a leather book with blank pages. Take photos of your best art outside with a telephoto lens. A wide-angle lens will distort the proportions of the image. Ensure the sun is behind you if it is a clear day. Print the photos. If your art is done on the computer, simply print a high-quality image.
Write an artist statement that conveys your philosophy as an artist and the methods that you use. The statement could also include your inspiration for becoming an artist and your goals. Include your process of making art. The statement should be approximately three paragraphs.
Gather 12 to 20 photos of your best art -- placed after the resume -- as well as an artist statement, short biography, resume and awards and articles from newspapers and other publications, all on separate pages. Glue the images to the pages of the album.
Keep all the information included in your portfolio up to date. Include any new art and update the resume to include any new exhibits.
Keep your old work as reference whenever you replace it in your portfolio. This will enable you to see how you have grown and it may remind you of techniques you used to use that you want to revisit.