189083061 C79D923284
This little book is super handy for anyone who makes stuff (or needs to look up things for the making of things) it’s filled with hundreds of tables, maps, formulas, constants & conversions. It’s tiny and I don’t ever leave home without it – Link & detailed contents – Link.

  • mypantsareonfire

    have it.

    just saying.

  • ryan.shuck

    I have one too, it’s the bees knees.

  • SpiderWrench

    This is a great reference book! I use it constantly. It is also part of a series, I know I have seen Pocket PC Ref which is a computer user/programmer version of the same design.