I can mostly answer this from the perspective of a Perl developer, but maybe this'll show you some ways to go on reading. The things i know as most important ar

I can mostly answer this from the perspective of a Perl developer, but maybe this'll show you some ways to go on reading. The things i know as most important are: Testing Shortly put: Ever wrote software? Ever went and tested a feature manually by running the executable or clicking in the web browser? Now imagine you never had to do a manual test more than once because you put any manual test you did into a little program that runs it for you and which knows how to output and summarize the results. Suddenly you can write more code because you spend less time testing your software and you test it more because you simply need to run "make test" to run ALL the little programs that test your features. See: https://metacpan.org/pod/Test::More https://metacpan.org/pod/Test::More Statical Analysis You think you write clean code? You think you don't use anti-patterns? You sure? I know i'm not sure. Now how about running a program that will take apart your source code and run it through hundreds of little rule checks contributed by hundreds of people which will cruelly and mercilessly point out where YOU FUCKED UP. See: https://metacpan.org/release/Perl-Critic https://metacpan.org/release/Perl-Critic