Explore the skies with *Observer’s Aircraft*—this book is a total gem for anyone who loves planes. Published back in ’93 by Penguin, it’s packed with cool details and even cooler silhouettes by Dennis Punnett, William Green, and Gordon Swanborough that make spotting different aircraft way more fun.

It’s small enough (155mm tall, 99mm wide) to chuck in your bag and take anywhere—perfect for nerding out on flights or just flipping through at home. Written in English, it’s got everything from history to design quirks, making it a must-have if you’re into aviation. Seriously, your shelf isn’t complete without it.