For this interested in the topic, I highly recommend this text. Note that "interested" doesn't mean "casual interest" - more like "seriously learning to design rocket engines" (as I'm doing.) But, it's given me much that I haven't been able to find on my own as of yet, and it was a deal at twice the price! Leaving aside that the book arrived a day early, and in excellent condition...

Book is a complete overview of rocket propulsion engineering.

Nice to save some money on a textbook I needed

Libro utilissimo e ricco di qualsiasi cosa necessaria allo studio dei razzi. Costoso purtroppo, ma le pagine sono di qualità, come lo è anche la copertina rigida