A specialized book featuring detailed explanations and illustrations of aircraft engines. - Title: The Jet Engine - Author: ROLLS-ROYCE - Cooperation: Japan Air Technology Association - Engine Model: Rolls-Royce RB211-524 G/H - Engine Model: Rolls-Royce RB 41 Nene - Engine Model: Rolls-Royce Trent This is a technical explanation of Rolls-Royce jet engine technology, translated and supervised by the Japan Air Technology Association. It was donated to the company as a personal item, but I took it back because the content is outdated. Therefore, the book's management number was left, so it has been erased with a marker. Although it's an explanation of somewhat antique engines, just looking at the wonderful illustrations is enjoyable. The exterior is a little worn, but the contents are fine. Thank you for looking.