"Magic Dynamite" (Burling Hull), was described by him as a

"perpetual book – you ADD to it continually with the Additional 'Sections' which you receive at intervals. You create an Ever Growing Book – really an entire Library of "Textbooks".

Part magazine, part catalog, it was quintessential Hull, and in classic Hull style, the front page of Magic Dynamite 1 offers "COUPONS FOR 2 FREE TRICKS".