An excellent book for anyone who wants to try bike repair; or having tried it, to do it better. Bicycles keep getting more complicated, as vendors keep finding new ways to literally reinvent the wheel and everything else on the bike. Parts don't always get better, but they surely do get different. If you learned to fix old bikes you'll need to keep reading new books. And buying new tools. At least this book pretty clearly tells you what tools you need.
The book's overall quality is outstanding. I found a dozen-odd typos but nothing that clouded the meaning. I even learned a trick for fixing a piece of utility equipment: I have a hand truck with a slow-leaky pneumatic tire. The tire is tubeless, and when it went completely flat I couldn't pump it back up with my hand pump. With no pressure in the tire, the bead wouldn't get a seal against the rim, and I couldn't pump faster than the air would blow out. The Big Blue Book tells how to fix the same problem with tubeless bike tires - put a compression strap around the circumference of the deflated tire, to squash the bead against the rim enough to give it a seal so you can start pumping. I didn't have a proper compression strap, but I improvised with a bungie cord around my hand truck tire and it worked like magic, holding air from the first pump stroke.
It would be hard to improve on this book, but I have one suggestion. When Jones talks about tire boots, he mentions that using the old trick of a dollar bill is not reliable. He recommends Park's purpose-made TB-2 Emergency Tire Boots. I imagine they work well, but the free solution is pretty good too. For years I've been cutting up old tires to make tire boots. Just cut both beads completely off an old worn-out tire, then cut sections of the casing between 6 and 12 or so cm long. They fit inside a slashed tire, covering from bead to bead, for on-road emergency repair and will temporarily patch a hole of a size you wouldn't think you'd be able to ride home on. I've saved myself and a few riding partners over the years. They also rubber-band neatly around a multi-tool for carrying in the on-bike tool bag, protecting other items (such as tubes) from any sharp edges of the tool.