Recommended resources to consider:

* Code Complete https://www.amazon.com/Code-Complete-Practical-Handbook-Cons...

* Programming Pearls https://www.amazon.com/Programming-Pearls-2nd-Jon-Bentley/dp...

* Pragmatic Programmer https://www.amazon.com/Pragmatic-Programmer-Journeyman-Maste...

The Pragmatic Programmer: From Journeyman to Master https://www.amazon.com/Pragmatic-Programmer-Journeyman-Maste...

This book seems to be a classic for programmers.

I give these three books out to new managers in my org:

* High Output Management by Andy Grove https://www.amazon.com/gp/product/0679762884/

* Turn the Ship Around by David Marquet https://www.amazon.com/gp/product/1591846404/

* The Score Takes Care of Itself by Bill Walsh https://www.amazon.com/gp/product/1591843472/

For interns I give out these two books:

* The Pragmatic Programmer https://www.amazon.com/Pragmatic-Programmer-Journeyman-Maste...

* The Passionate Programmer https://pragprog.com/book/cfcar2/the-passionate-programmer