How many books are sold every day?

Can you elaborate on the extent of book sales on a daily basis? I'm curious to know if there's a specific number or range that can be attributed to the number of books sold globally or within a particular region. Are there any factors that significantly influence this figure, such as seasonal trends, new releases, or perhaps the emergence of digital reading formats? Additionally, how does the book industry track and report these sales figures, and what role does technology play in this process?