I've read a lot of books in this genre. Here is a small collection of the ones I find myself recommending regularly.
A foundation for your company code review policy, based on the one I deployed while Head of Eng at Medium.
Good tech specs can have an outsized impact on a team's effectiveness, and it doesn't have to be complicated. Here's a template I've used at a number of roles.
A post I wrote at Medium explaining the risks of high-cardinality error messages. It is still relavent today, despite advances in tooling.