Thanks for the recommendation. It is nice to see. I have read both of the novels myself, as well as at least one of the Penumbra novellas (it's been a while). I

Thanks for the recommendation. It is nice to see. I have read both of the novels myself, as well as at least one of the Penumbra novellas (it's been a while). I really enjoyed the Penumbra stuff; I have to admit I remember feeling slightly unsatisfied with the conclusion but I was definitely hooked and kept turning the pages and it was the first time I had seen a fictional book refer to Ruby programming. I really enjoyed his characters. I recall enjoying Sourdough as well, perhaps not as much as Mr. Penumbra's 24 Hour Bookstore, but that was an absolute pageturner for me so it's hard to compete with. I am subscribed to his newsletter but I confess I rarely if ever read it. After having read this post and your comment, I'll make an effort to give it a solid look. Festina lente!