31 books • 2 series
The Know It All Book of Marketing (The Know It All Books, #18)
The Know It All Book of History (The Know It All Books, #14)
The Know It All Book of Literature (The Know It All Books, #17)
The Know It All Book of Gastronomy (The Know It All Books, #10)
The Know It All Book of Poverty (The Know It All Books, #27)
The Know It All Book of Oenology (The Know It All Books, #23)
The know It All Book of Business (Know It All, #3)