Adobe Illustrator is a vector graphics editing program produced by Adobe Systems. It is usually sold as part of the Adobe Creative Suite, but can be purchased separately. Many graphic design firms use Illustrator because it can be used to make 3D graphics and edit typography, which are useful tools in creating brand logos and other printed marketing tools. These vector graphics are made up of anchor points, which can be changed using more than a dozen tools and a number of editing features, called 'effects.' You must first select the object using the direct selection tool, lasso tool or magic wand tool. There are 15 versions of Illustrator, so the instructions for using its tools and features differ between the editions. Read more to find out how to use the lasso tool in Adobe Illustrator. Source.