A book with unusual math approaches.

[stefan10]

I am looking for a book that develops problem-solving techniques which help develop individual and unique methods to approach mathematics. I find that if I see a problem type I am used to, I do fine in math, but when there is analytic skill required I have trouble finding a solution quickly. Are there any books that help build mathematical techniques opposed to concepts, memorization, and plug-in solutions?

Edit: By the way, my skills are developed up to single-variable calculus. Although they are not necessarily refined or perfected.

[fourier jr]

I wonder if you mean something like How to Solve It (http://books.google.ca/books?id=X3xsgXjTGgoC). That's not an unusual book though, it's pretty standard.

[stefan10]

Yes, I'll look into it. The description seems to be very close to what I'm asking for.

Thank you!