Reddit mentions of What Every Singer Needs to Know About the Body

yes. get instruction if you can, because it will answer a lot of questions and provide an outside perspective. find someone who respects and understands the type of singing you want to do, even though they might start you with something more traditional. also, i can recommend this book and this book, which could get you well on your way for a total of $70.

you don't hear people get better because you don't often meet people who are dedicated who haven't already been working at it for a while. it takes many many hours of dedicated work and play.

The Structure of Singing by Richard Miller

Securing Baritone, Bass-Baritone, and Bass Voices by Richard Miller

What Every Singer Needs to Know about the Body

I didn't learn about these books until graduate school. I think every singer needs them in their personal library. The Miller texts are very thorough on technique with scientific explanation of phonation. Lots of diagrams and lots of exercises with very specific purposes. Also a lot of very good references to other texts. If you're more of a right brain thinker and respond better to metaphors and abstract approaches, Miller may not be your go-to reference guide, but it's important to at least study for pedagogy's sake.

The other book focuses on body awareness. It will change your life. For real. Posture, balance, alignment, movement - everything you need to know. Teachers toss around terms and commands such as "tension," "relax," "stand up straight," "chest high," "shoulders back," etc. but none of this is specific enough to actually correct anything and can actually cause other problems! This book will save you. It is my precious and I love it.

"What Every Singer Needs to Know About the Body"
http://www.amazon.com/What-Every-Singer-Needs-About/dp/159756494X

This is a great book. Easy and interesting read with input from singers and other musicians.