Jigsaws are used by hobby and experienced woodworkers alike, and are a great introduction to power tools. A jigsaw cuts much faster than a hacksaw or hand saw, saving you a lot of time and energy.
Jigsaws are ideal for small workspaces, as they fit nicely in a hard carrying case that can be stored on a shelf or in a closet. Despite their small size, jigsaws can perform similar tasks that a larger circular saw or band saw would be used for, such as cutting plywood or pine boards. But the jigsaw has a major advantage: It can start cutting in the middle of a board (just drill a starting hole and then drop the blade in).
A variable speed trigger controls the speed of the blade which operates in an up and down motion. Start the blade before touching the wood, or you risk splitting the edges.