How does light interact with a red book and a red stained glass window?

Light interacts with a red book primarily through absorption and reflection; the surface of the book absorbs most wavelengths of light but reflects red wavelengths, making it appear red to our eyes. In contrast, a red stained glass window transmits red light while absorbing other colors, allowing light to pass through and create a vivid red hue. Both objects appear red due to the specific wavelengths they reflect or transmit, but their interaction with light differs in how much light is absorbed versus transmitted.