Zinn and the Art of Mountain Bike Maintenance is a good one. There are lots of decent ones. Bicycling Magazine makes one fairly general one that we used as our "text book" when I taught mechanics at the United Bicycle Institute, so it would be another decent option.
If your bikes are V-brakes (I am guessing), then chances are you need to adjust spring tension. You can do so by loosening a little recessed allen bolt (usually 2.5mm size or thereabouts) found on one of the brake arms (sometimes both) usually below the area of the brake shoe to loosen the spring on that arm, or tighten it to increase spring tension for that arm.
It is a little weird that it happened just after you adjusted the brake shoes. So before doing this, I'd recommend you take a visual look and make sure the top edge of the brake shoe isn't hanging out/snagging on the tire just above the rim. This can happen occasionally, and might make sense if it is related to your brake shoe adjustment. Also, ensure the wheel is seated properly (centered) and securely in the frame. Any deviation can also cause brake shoe rub.