ruby on rails - Book recommendation to improve programming solution skills -

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i'm self taught. i'm doing of work in rails. find difficult solve complex programming problems, i'm sure lot of do. subject or book study improve programming solving skills?

is there specific book matter? maybe math, algebra, calculus? general computer science? book http://pragprog.com/book/ahptl/pragmatic-thinking-and-learning ? general oop?

i have on 20 years of programming experience, , in experience ways improve programming skills (not in order of priority)

a) solve complex programming problems

b) revisit solutions see improvements can made (2-3 passes @ least).a book tips improve programs refactoring: http://www.amazon.com/refactoring-improving-design-existing-code/dp/0201485672

c) dr. dobbs excellent site tips , insight: http://www.drdobbs.com/

e) @ other people's code, eg. open source code don't develop frog in mindset. great way learn practices.

f) learn program in multiple languages (eg java, php). great way improve skills.

g) try , think 'best practices' when writing code. hth.


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