Had you noticed that Gan kills at least one person, and therefore either the script forgot about his limiter, or the limiter is dodgy? Had you considered the idea that Avon subconsciously sees Blake as a substitute for his missing brother, hence his ambivalent feelings of loyalty and resentment? No, nor had I.
If you care about such things, buy this book. If you don't, why are you reading this?
The format is chronological episode-by-episode, but this is far more than your average fan's plot summary, it's an intelligent, well written critical analysis, packed with details about production problems, script alterations, and acute observations of characters and sub-texts. There is more to Gan, for example, than meets the eye ...
There's also an appendix which reviews Blake's 7 radio shows and other spin-offs.
As far as I know this is the first and only guide to Blake's 7 there is, and the text is superb - far better than other guides I've read, about The Prisoner and The Avengers,for example, by Alain Carraze et al. Where those guides excel, however, Liberation fails. They are large and have glossy pages and colour photos. Liberation is A5, and has tiny b&w pictures. I don't know if the leather-bound edition improves on this, but the text deserves a large-format glossy photo edition, which would be worth double the money.