Former President Trump is well-known for making outlandish, hyperbolic claims that he's doing something exemplary when, in fact, what he's doing is generally less than average.
For example, when he claimed that he had the biggest turnout of any inauguration ever, this was a lie. Though perpetuated by then-Press Secretary Sean Spicer, there was no saving the fact that his inauguration turnout was one of the most low-attended of all time.
But the former President is at it again—claiming that he has the "book of all books" in the works.
Whatever Trump's "more important project" is, it's likely to be filled with the same lies and hyperboles that his presidency was peppered with.