1) where do you purchase a book on getting your california horse
trainers ( race Track) license -  is their website that offes a course
on line?

Go to a track and get yourself a job as a hotwalker.  If you last you
can work your way up to groom.  After a couple of years you'll know
the ropes and understand what it takes to become a trainer.

Thanks for the post -- but not what I was looking for - My husband is
a retired jockey and I want to start studying for my licenses - I was
hoping to take a study course on line before I take my license

However, My husband agrees - hot walking and working your way up - is the best way-