The buying and selling of books; the business of printing and publishing books.(noun)
Those, collectively, who are engaged in this business.(noun)
The Century Dictionary (Public Domain)
Use "book-trade" in a sentence
"BOOKEXPO AMERICA Jane Fonda, Roger Ebert and young-adult author Sarah Dessen provide marquee names, while book-trade professionals exhibit and network."
"Comics in print really have only two outlets – the comic shops (and the few book stores still carring comics), and the collected TPB for the book-trade."
"The wrapper was discovered by the Bodleian's head of conservation, Michael Turner, when sorting through an archive of book-trade ephemera that had been bought by the Bodleian in a sale in 1892."