Mini sessions are relatively new. The idea of a mini session is for the photographer to pick a great location at a good time of day for lighting, and to book back-to-back sessions that are not as long as a normal session. This is great because it’s in one location, you will be able to photograph multiple people in a condensed time and—last but definitely not least!—they’re a great marketing tool.
Mini sessions can be great for clients because they take a lot of guesswork out of the session. What location do we choose? When will we do it? And, probably the biggest advantage, since the photographer is shooting a lot of sessions in a condensed time, you can get the end product for less than you normally would. For clients with young kids, 20 minutes is often all you need to get those perfect shots.