How to Keep Your Volkswagen Alive: A Manual of Step-by-Step Procedures for the Compleat Idiot by John Muir and Peter Aschwanden.
I see it's still in print. This video shows some of the wonderful artwork:
I had a 70.5 baja bug from age 14 until 21. I lived 8 miles from a town of 3,000 in Arkansas, and later moved even further out until it was 16 miles to town.
I drove myself, two brothers, and a sister to school in that thing for 4 years. (93-97) Well, I say 4 years, but anyone who has owned an air cooled VW knows how often we had to take the bus. Walking ~2 miles down a dirt road to the highway bus stop isn't much fun.
I'd probably do it all over again, too. Specifically because of that air cooled monstrosity I can fix anything, or at least I think I can. Fearless, if you will.
I'd do it again for my kids if it wasn't for the fact that there are teenagers driving 400 HP Mustang 5.0s and Ford Excursions can be had used for $5,000. An air cooled VW is a death wish on today's roads.
They don't have A/C. The heat carries with it exhaust stink and is nearly useless anywhere northeast or midwest. They rust easy, are very unsafe by today's standards, hydroplane like mad (though rear-wheel-drive is fun), and the motors on the wipers either creep slowly or sweep slowly. They are light and tall, so they are like sails when you have cross winds. They can barely maintain speed up long ascents...
But that book is an amazing piece of craft.
I see a lot of nostalgia for those machines, but I was glad to be rid of it. They're noisy, uncomfortable, the heater is a joke, windshield defroster never works, and dangerous.
Aircooled VWs are so simple. That book was such a good companion, down to the first part which explains "front is front, up is up, back is back..." complete with a diagram. When upside-down & greasy, knowing exactly what the author means by "reach to the upper left of the engine" is important.