An artist's portfolio is an edited collection of their best artwork intended to showcase an artist's style or method of work. A portfolio is used by artists to show employers their versatility by showing different samples of current work. Typically, the work reflects an artist's best work or a depth in one specific area of work.
Historically, Portfolios were printed out and placed into a book. With the increased use of the internet and email however, there are now websites that host online portfolios that are available to a wider audience.
A key component is the editing of the work. Regardless of the depth of an artist's work, the editing process allows for a clean, concise presentation to the intended audience. You can add from basic knowledge of your art in your visual like resume in portfolio. Sometimes, an artist portfolio can be referred to as a lookbook.
When creating a portfolio, it is vital to consider your audience. You must consider who will see it, why they are looking at it, and what you are trying to accomplish with it.