I recently read this book and found it very interesting and useful. I think it might be for you.

The book is: High Output Management by Andrew Grove.

It is a dated book but many of the procedures described are still valid today (obviously using real digital tools).

I highly recommend you to read it. Improving a company often means improving the way people in the company work and interact while also increasing the quality of life of these people.

I think many of the practices described in this book are about these very things.

Good luck improving your business and sorry for my English (I'm Italian).