[support] Drupal API?

Drupal API site doesn't have printer friendly version. I started to fetch into Acrobat this morning, and it is still running. It's about 340 pages now, and I am about to abort. Is there printed version of API somewhere? How others are doing?

Every time I see code example, I get stuck because I don't understand the param which are passed. Do I understand everyone is familiar with the API, and the only way to understand the code is to know the API? I am a noob and I would like to learn step-by-step. I did buy Pro Drupal Dev book. The 2nd chapter goes right into Module without any explanation of API.

Appreciate any suggestion.