cool

A decent how-to book (i.e. fine and no more), though you'd best get your own copy, and a set of 100 flashcards while you're at it. That's because the author asks you to memorize your addition tables again - this time, in a rather strange manner...

There were some times where I was like, yeah, I get this, but I doubt anyone is going to use these things unless they read this book ten times. Meh. Still, a good read!

In this day and age of calculators, sadly some of the techniques are a little too lengthy to learn to make them usable.
There are, however quick tips for estimating, eg shopping bills, checking addition etc.

Another cool book by Harry Lorayne on how to process math problems. I wish I had this when I was in school. I wish my teachers had this when they were teaching me math.

good