a publication, website, or other item that tells what a comic book is worth
A periodical, whether electronic or paper, listing approximate prices for numismatic items, whether wholesale or retail.
any number of publications that list wholesale and/or resale prices for coins, often in a number of different grades or categories.
A periodical listing prices for numismatic items. The guide might differentiate between buy and sell (Bid/Ask), as well as wholesale or retail prices.
A price guide is a book or online site that attempts to deliver accurate and concise valuation information for a good. Many industries and hobbies rely heavily on independent pricing sources when evaluating an item to sell or to purchase. This is most prevalent in the automobile industry and in the world of collectibles such as baseball cards, coins, comics, or stamps.