Ceramic Tiling
You don’t need a book to lay ceramic tiles. Of course, it will save you a lot of money if you do get a book, instead of charging ahead blindly, trusting to luck.
Say your tiles cost $2 each and you need to cut a circular hole in a tile. If you are lucky, you won’t break more than ten tiles in your attempts. If you are less lucky, you’ll have to make a hole through two tiles, so that two taps can pass through. Oh, and I hope that you know the minimum about plumbing that a tiler needs to know, otherwise you could have a nasty stain round the taps as they leak very slightly for the next ten years. Or you could learn the right way to do it, from a book..
Of course, your friends will think that they are being enormously funny when they point out every wavy edge that should be straight, or stained spots near taps because you didn’t know how to prevent them, but at least you won’t have to admit that you aren’t an expert and buy a book.
Of course, this is a family pursuit, so you don’t have to admit that you don’t know how to do it.You can explain that you want only the best training for your children, then study all the materials before you show the kids how to do the job while you supervise with your vastly superior knowledge.
Of course, it won’t be your own decades of experience that you are using, but your kids won’t know any difference if you use the experience of this professional tiler and trainer. And you could even let them learn from Randy’s collection of videos by themselves if you didn’t want to convince them that you know everything.
Warning: Never let young children use power tools when you aren’t supervising. They can injure themselves too easily by doing what seems logical to them.