Oooh, thank you! I had heard of "The Cinderella Book" before, but hadn't looked into it. Seems especially promising given the title that came before it:
The first edition in turn constituted a major revision of a previous textbook also written by Hopcroft and Ullman, entitled Formal Languages and Their Relation to Automata.
Searching for that title also lead me to _Introduction to Formal Languages_ by Gyorgy E. Revesz, which also looks like a good fit and which Dover is currently printing as one of their reasonably-priced paperbacks!
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Oooh, thank you! I had heard of "The Cinderella Book" before, but hadn't looked into it. Seems especially promising given the title that came before it:
https://en.wikipedia.org/wiki/Introduction_to_Automata_Theor...
Used copy ordered.
Searching for that title also lead me to _Introduction to Formal Languages_ by Gyorgy E. Revesz, which also looks like a good fit and which Dover is currently printing as one of their reasonably-priced paperbacks!