Is it helpful for the phrase "The Sequences" to appear in the title? My sense is that anyone who's already familiar enough with the Sequences to know what it means isn't going to need that phrase to be interested in the book, and that the phrase doesn't add much value for someone who's never heard of the Sequences before. It's sort of a weird word that doesn't immediately suggest anything about rationality.

The only people for whom it would add value would be those who (1) have at least sort of heard of the Sequences and are somewhat interested; (2) need to know that this ebook is about the Sequences to decide to read it; and (3) wouldn't understand that this was the Sequences ebook without that word in the title. I doubt that's a very large class, so my initial sense is that it's not necessary in the actual title. But then, that's just what occurred to me in the last 10 minutes, and the people who have thought about this more carefully may well have other reasons.