The prompt for generating a legendary book artwork would be:

The prompt for generating a legendary book artwork would be: "A book filled with ancient knowledge, (best quality, 4k, highres, masterpiece:1.2) ultra-detailed, (realistic: 1.37) with magical charm and intricate details. The cover of the book is made of richly embossed leather with intricate gold engravings. The pages are aged parchment paper, slightly yellowed with time. The book is open, revealing pages filled with mystical symbols, secret incantations, and ancient illustrations. Illuminated by a soft, warm light, the book emits an otherworldly aura. The background of the artwork is a mysterious library, with endless rows of ancient bookshelves, filled with more legendary books waiting to be discovered. The color palette is filled with deep, rich tones of burgundy, gold, and emerald green. The artwork is rendered in a traditional oil painting style, bringing a timeless feel to the scene." Remember to arrange the tags in order of importance. Feel free to add or modify the details to create a compelling prompt for the Stable Diffusion model.