Hey, sorry for a late answer. Didn't come here for a week.

The Blocktrain just got sold a couple of days ago. But if you want I saw them on Amazon as well - https://www.amazon.com/Meet-Bob-Blocktrain-Blockchain-Cryptocurrencies/dp/9949727979/ref=tmm_pap_swatch_0?_encoding=UTF8&qid=&sr=