I first learned from the high yield guide for indoor growing by ed rosenthal.

Lip hydro isn't that hard.
You just have to be able to check on your plants once or twice a day.
My first grow was hydro.
And it wasn't that hard.
It just takes a little more attention.
If a pump dies or something you have to fix it right away.
But as long as you can measure stuff.
Hydro is easy.