Isaac Blum might refer to a less-known or emerging author, as there are no widely recognized figures in the literary world with that name up to my knowledge cutoff in 2023. It's also possible that Isaac Blum is a newer author or one who writes in a niche field, or perhaps an author who has gained recognition after my last update. Since I don't have specific information on an author named Isaac Blum, it would be helpful if you could provide additional context or details about the work or field in which this person writes. With more information, I could either update my response based on new data or help guide you to where you might find more about them.