DD1 loves to know how things work, and she's already amassing quite an impressive collection of relatively basic (so far) books on everything from telephones to the Titanic. Now it's cars. I've done my best 'how an internal combustion engine works' drawings (I'm no artist) and I can do drive shafts, but gears and clutches are beyond me. I need a good book with good illustrations.
All suggestions gratefully received! And quickly, before I find her under the car with my socket set... ;)