Very interesting analysis, Robert. I find it fairly convincing. You would then consider each of those publisher versions to be Manifestations of the Expression Chronicles of Narnia. That seems to make sense, since the “publisher series” often include different introductions, etc. I do have a question, though. It is appropriate that you used the Chronicles of Narnia as your example.
The Chronicles of Narnia have been published (in English), in two different sequences—numbered in publication order, and numbered in internal chronological order. The sequence does make a difference in the reading experience, and many people prefer one sequence over the other. Would you consider different sequencing to be different Expressions of the Work Chronicles of Narnia? I realize that numbering is a fairly minor change in terms of publishing, but it does make the story flow differently. Does this rise to the level of Expression, or is it just a choice in Manifestation?