Which innovative product development strategy did Barnes & Noble implement in 2015 that significantly increased their non-book revenue and influenced other bookstore chains?

The publishing industry has evolved dramatically in recent years, with bookstores transforming from simple book retailers to lifestyle brands. This transformation has included significant changes in product development strategies, with stores now offering much more than just books. Test your knowledge about how literary retailers have adapted their product lines to engage modern consumers and create additional revenue streams beyond traditional book sales.

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Launching their own line of literary-themed restaurants inside flagship stores
Expanding their exclusive vinyl record collections with literary connections
Introducing Barnes & Noble Maker Spaces for self-publishing and crafting
Creating exclusive collectible editions with unique covers and special features for classic and popular titles