0Clean Code by Robert C Martin, is available in my profile please download and read it, irrespective of what language you code in, it will change the way you code.
Also if you code in Javascript read
https://12factor.net/
https://blog.risingstack.com/javascript-clean-coding-best-practices-node-js-at-scale/
For Software teams and to get right estimations
https://www.joelonsoftware.com/2000/08/09/the-joel-test-12-steps-to-better-code/
https://www.joelonsoftware.com/2007/10/26/evidence-based-scheduling/
