I don't think Hillyer would be redundant with Marvels, they are different types of books. Hillyer is more of an intentional overview, while Marvels follows the author's journeys.
Amy, who wishes to be a hobbit 
Enjoying AO years 6 & 11 with DS18, DS16, DS14 and DD10

Enjoying AO years 6 & 11 with DS18, DS16, DS14 and DD10