This was the reason I decided to write this article, I was in a similar position and had to improvise somehow. I didn't find many resources for people transitioning from developer to product/project manager roles.
I think one pragmatic way to approach it is to find an opportunity within your organization to try it out without having too big of an impact at first. This way you can learn what works for your business.
I really believe that product management is not a 100% transferable skill like programming would be, it's more dependent on who and what you are dealing with, hence the lack of general resources adapted to devs. There might be some general guidelines here and there, but in my many interviews this year, I found out that product management at company A can be totally different than at company B.
I'd gladly read some resources if somebody answers your question better than me though!
This is seriously I've of the best articles on project management with dev teams. It highlights tons of the important things without sugarcoating how dynamic and next the whole process can be. I was a tech lead at my last job, and it became mostly project management in a hardcore scrum environment. I definitely stumbled transitioning between the roles. I'm gonna pick up your book recommendation too!
