7 years ago I tried to learn TurboCad using a book. Worked OK.
Then never used it (so I lost all the knowledge)
Recently got interested in cnc - so I started to look for CHEAP options for CAD program and training.
I got TurboCad Deluxe 15 and a full set of training videos from Rob at CadCourse.com - for $100 !
Now I believe his videos is the only way to learn CAD.
So far spend 2 hours watching and already feel like a pro !
I'd still like a book for reference.
Don't know how TC compare with other CAD programs, but for the price (and my needs) doubt you can beat this.
Rob Berry sure knows the program and how people actually use it.