Artist's portfolio
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An artist's portfolio (sometimes referred to as a lookbook) is an edited collection of an artist's best artwork intended to showcase their 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 (the folio). 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 photography portfolio can focus on a single subject. It can be a collection of photographs taken with a certain type of camera, in one geographic area, of one person or a group of people, only black & white or sepia photos, a special event, etc.
Many photographers use portfolios to show their best work when looking for jobs in the photography industry. For example, wedding photographers may put together a book of their best wedding photos to show to engaged couples who are looking for a wedding photographer. Photojournalists may take a collection of their best freelance work with them when looking for a job.