I like "Thinking, Right and Wrong".
Since it's an ebook, I suggest a set of hashtags or summary keywords that trigger the responses for people to look up themselves, such as "rationality, heuristics, biases, artificial intelligence."
Another suggestion: "Thinking 001"
Quantum Computing Since Democritus got me thinking that we may want a more riveting title for The Sequences, 2006-2009 ebook we're preparing for release (like the FtIE ebook). Maybe it could be something like [Really Catchy Title]: The Less Wrong Sequences, 2006-2009.
The reason for "2006–2009" is that Highly Advanced Epistemology 101 for Beginners will be its own ebook, and future Yudkowskian LW sequences (if there are any) won't be included either.
Example options: