Something called 'Knitting on'

I am a beginner and have done a few easy projects and have now picked up a new book on gift knitting. One of the techniques is called Knitting-On, described as a method of casting on new stitches. Does anyone have an easy way of describing this technique? I can’t understand the directions and I don’t have a picture. I haven’t gone to the book store to get a copy of a good reference book yet. Can anyone recommend a good comprehensive reference book? Thanks.

There are a bunch of cast on techniques including that one here.

Welcome to! :sunny: