THE BIG GUY GOT HIS 10%: Joe Biden’s Released Tax Returns Don’t Explain Millions In Income. Where Did It Come From? “The same media that ignored Hunter’s laptop has shown a complete incuriosity about these entities, accepting the premise that Joe and Jill raked in $13 million from their book deal to generate their huge increase in income. We simply don’t know if that’s true, though. What we do know is that their book sales were dismal.”