
If you really want to know how transistors work and how to use them properly it’s going to be difficult as they sit on a fairly large pile of algebra and theory. If you don’t know this you might be able to get simple circuits working by cutting and pasting bits but you won’t be able to get past that ever.
The best references on this are actually The Art of Electronics. Not necessarily the main book but the associated student manual. Also the book Experimental Methods in RF Design by Wes Hayward actually has the most useful functional description and modelling approach of transistors.
Ergo I'm glad I steered around them. My favourite author on such matters is Wes Hayward, particularly Experimental Methods in RF Design which taught me more about electronics than any other book out there.
Wes Hayward W7ZOI explains this side of things rather well in his book Experimental Methods in RF design. Some of the content is duplicated here discussing bipolar transistor feedback amplifier designs: http://w7zoi.net/transistor_models_and_the_fba.pdf