Embedded Systems Fundamentals with Arm Cortex-M based Microcontrollers: A Practical Approach Nucleo-F091RC Edition

I have been struggling to understand the fundamentals of embedded programming through watching videos and tutorials online and trying to use and modify source code that has been written by others. I have really had no idea what I am doing and finding reliable and current help in this field is very difficult. This book is great though I am only at chapter 3 and am using a different NUCLEO board to what is used in the book which makes it more of a struggle but honestly I think this added struggle is really helping me learn the material much more thoroughly. Digging through the register library's to find what is appropriate to my board relative to the course material exposes you to what is really going on under neath the surface.