The short answer is October 25, 2012 to March 18, 2013.

The spreadsheet is something that I've been fine-tuning for the last five years with Sifter. It took me a couple of days to clean it up and make it more user-friendly.

The book was about 1.5 months of full-time writing and editing. But I've been working on it about half-time since October doing research and working out all of the logistics.

We also hired both an illustrator for the cover and an editor to reduce the amount of effort I'd have to put in. So that probably shortened the timeline a bit.