Illustrator CS6 Training Videos

CMYK is used primarily for print and RGB is used for web.  All vector artwork that is made in Illustrator are made of paths, which are the line segments that make up the overall structure of your artwork.  Anchor points are the control points for your paths.  When working with curves, you have to work with control handles, which tell the path how to curve up or down.  Closed paths are when the paths move from anchor to anchor with no open ends (rectangle, star, ellipse, etc).  An open point is when the anchors are not completely connected.  You can make "on the fly" changes to open and closed paths by using the arrow keys while creating the path.  Joining takes two paths/anchor points and makes them into one.  Average snaps two anchor points together that have distance between them. The scissors  and the knife tool cuts a path/shape into separate path/shapes.  However, the scissor tool is more precise and will always cut straight lines, whereas the knife tool can act as a "liquid knife" and cut curved lines.