Question: I would like to build a simple audio amplifier using transistors. I know there are IC designs specifically for the task. But i want to use transistors so i can learn how to use them for amplification.

How would I go about designing an audio amplifier from just discrete components.

Answer: 
There is nice example of transistor amplifier in popular book "Art of Electronics"
![Art of electronics (1st edition ?)](https://i.stack.imgur.com/9dVtq.jpg)
I don't recall whether or not it uses transistors, but I'm positive Randy Sloan's excellent [Tab Guide to Understanding Electricity and Electronics](http://rads.stackoverflow.com/amzn/click/0071360573) contains an entry-level amp. Regardless, it's audio-centric so you will find many tasty things!