I toyed with the idea as well. I went onto her website and printed out the flyer she has and then came in here and went on the BLS thread and found that was enough.
I also just skipped the whole puree part of some the of the kids cook books I have and went to the older babies part where the finger food starts and went from there.

I decided since DD was our last baby, I wouldn't get value out of purchasing whole books.

Perhaps see if you can borrow them from your local library and if they don't have it in stock, request they get it in for you. I quite often look for books at my library and if they don't have it they have a 'request' for them to purchase and you are the first one in the queu to borrow.