What is the purpose of a fashion lookbook?

A fashion lookbook serves the primary purpose of showcasing a designer's collection through styled photographs. By presenting the garments in visually appealing ways, lookbooks allow designers to express their creative vision, aesthetics, and the overall theme of their collection. High-quality images arranged in a thoughtfully designed layout not only provide a clear view of the designs but also convey the lifestyle and emotions associated with the fashion line. This visual storytelling is crucial for marketing and engaging potential buyers, fashion show attendees, and industry professionals, making the lookbook an essential tool in the fashion industry.

The other options focus on practical details or customer interactions rather than the visual and promotional aspects that a lookbook embodies. While price lists and production details are important for business operations, they do not represent the artistic presentation that a lookbook aims to achieve. Customer testimonials can enhance a brand's image, but they are not the core function of a lookbook. Therefore, the correct answer underscores the artistic and promotional nature of this valuable tool in fashion marketing.