I vaguely remembered French government was doing something like that, but never look closer, today I came across catala, and I love this so much:
scope QualifiedEmployeeDiscount :
definition qualified_employee_discount
under condition is_property consequence
equals
if employee_discount >=
customer_price * gross_profit_percentage
then customer_price * gross_profit_percentage
else employee_discount
Makes me remember being 20-something and wishing everything was code.
Wonderful, more than a century old book Monograms & Ciphers (by Albert Angus Turbayne) has some cool examples of monograms (doh):

As I was searching for monograms I came across few websites selling monograms to you and several of them has just ideas from this book and J.O Kane’s Decorative monograms.
There is vast library of field manuals from various government agencies. US Antarctic program is fascinating. I have strong feeling that if you want to start doing something new, checking for some field manual can save a lot of time building expertise.
And tangental related to this, I like tech books with “war stories” eg Release It ( you can read it for free with San Francisco public library account, that has access to oreilly.com)