hi, john. i have books to send u , but i need your email
2 years experienc of working with capture and layout is enough i guest.
collect your works and mak them as a book try writing yourself higlihghts of conclusion, tips and patents you saw in this two years
learn on pcb proccessing and manufacturing process
search for diffrent methods of manufacturing
i mean dont try to learn a new stuff , just organize all your experience u have
anyway , there is a lot of sites dealing this subject just search them on web
try going to some library or university library and learn there
i had downloaded my ebooks by emule and bittorren programs, i have many hardcopies, so tell me what subject r u interested and i'll scan my hardcopies i have
i wish u all success, and let me know how is doing