I am usually new to the business domain, ergo, I start compiling a "Dummy's Guide to [Plant Genetics]" or whatnot. The code and the tools used to work on the pr

I am usually new to the business domain, ergo, I start compiling a "Dummy's Guide to [Plant Genetics]" or whatnot. The code and the tools used to work on the problem domain are always changing, but the basics of the business usually are not. My guides help new hires understand why the business does what it does so they can start adding value more quickly.