1. Kelley Blue Book (KBB): This is probably the most well-known meaning. It's a vehicle valuation service that provides estimated retail values for used cars, trucks, motorcycles, and other vehicles. You can access their information online or through their app.
2. Blue Book of Gun Values: This is a guidebook that lists estimated values for various firearms, including pistols, rifles, shotguns, and more. It's often used by collectors and dealers to assess the worth of their firearms.
3. Blue Book of Stamps: This is another guidebook that provides estimated values for various stamps, including postage stamps, commemorative stamps, and more. It's used by collectors and dealers to assess the worth of their stamps.
4. Blue Book of Coins: Similar to the above, this is a guidebook that lists estimated values for various coins, including U.S. coins, foreign coins, and ancient coins. It's used by collectors and dealers to assess the worth of their coins.
5. Other Blue Books: There are other "Blue Books" available for specific industries or products, such as:
* Blue Book of Business Values: Used for valuing businesses for sale or acquisition.
* Blue Book of Antiques & Collectibles: For assessing the value of antiques and collectibles.
* Blue Book of Musical Instruments: For assessing the value of musical instruments, such as guitars, violins, and pianos.
To understand which "Blue Book" you're referring to, you'll need more context. For example, if you're talking about the value of a used car, you're likely referring to Kelley Blue Book.