Focus on the pronunciation of run of book
English definition of “run of book”
run of book (also run-of-book)
adjective (abbreviation ROB) MARKETING
› used to describe advertising space in a magazine, newspaper, etc. bought at a rate that does not allow the business buying the space to choose a particular place for their advertisement: An advertiser decided to turn two run of book pages into an insert. Could you provide me with the gross rate for a run-of-book ad? run-of-book adverb › The offer includes one full page four-color ad to be placed run-of-book.