Complex sentence: A second cookbook followed in 1958 called "Aromas and Flavors of Past and Present"; however, Toklas did not approve of it as it had been heavily annotated by Poppy Cannon, an editor from "House Beautiful" magazine.
Split into simpler sentences: A second cookbook followed in 1958, "Aromas and Flavors of Past and Present". However, Toklas did not approve of it as it was heavily annotated by Poppy Cannon, an editor at "House Beautiful" magazine.