I would also love to get those pdfs of his older books if anyone has them. Been wanting to read his stuff for a while.
A lot of the titles are still in print I believe. Support the author and buy. The books are not that expensive.
His earliest works were only available as PDFs - presumably set now to be published in print? I give all his stuff the highest recommendation but the published and currently available titles from 9bb, AS, etc. are his greatest works.