[thesuperbigfrog]

Recommended reading:

https://en.wikipedia.org/wiki/The_Mythical_Man-Month

Though it was written in the 1970s, the way that people write software and the invisible laws that govern that process still hold today.

This book describes those invisible laws and is worth reading if you are managing software development.

[dtagames]

Double up-vote for this. The most important book about the software development process that you'll ever read, from the man who ran IBM's bet-the-company System/360 product.