Which publishing company pioneered the 'dynamic pricing model' for dust jackets in 2018, where book covers would change price based on social media buzz and critical reception?

Book cover design is one of the most crucial aspects of marketing literature. A compelling dust jacket can make a book fly off shelves, while poor design might doom even the most brilliant work to obscurity. Publishers invest significantly in cover design as it represents the first point of contact between a potential reader and the book. This poll explores how famous publishing houses have utilized innovative pricing strategies to differentiate special editions and create collector's markets.

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Penguin Random House with their 'Market Responsive Editions'
HarperCollins with their 'Trending Covers Collection'
Simon & Schuster with their 'Viral Value Series'
Macmillan Publishers with their 'Fluctuating Frontispiece Program'