Antiquarian book trade is the trade in old books and rare antiquarian printed goods. The term “antiquarian books” is also used for a complex of various old and antique printed goods (old books, antique books, booklets, postcards, newspapers, magazines, playbills, proclamations, tickets, flyers) gathered in one place. Antiquarian booksellers are specialists in antiquarian book trade, usually experts in rare antique editions. The old books in the antiquarian book trade by convention are separated into old books (printed after 1851) and antique books (printed before 1851). Today antiquarian books are a fairly popular hobby, even though the definition of it is not quite correct, since collecting rare old books is called bibliophily, and the collectors themselves, consequently, are bibliophiles.

Currently the antiquarian book trade, as well as the book trade in general, to a great degree has moved online. “Old books buy”, “books antiquarian”, “antiquarian books ru” and “antiquarian books site” are among the most popular online searches. The online antiquarian book trade is very diverse. Here you can find specialized and non-specialized online auctions, online stores selling old books; there is also an opportunity to sell antiquarian books on open platforms where the owners of the books and the collectors can negotiate directly.