Mathematics Books

Can you recommend some excellent mathematics books for expanding my knowledge? I have heard from different sources that authors such as Stewart have some of the best books, but I honestly don't know where to start and am lost. I have very little experience with trigonometry and little to none with calculus and absolutely none in further fields, and I want to fix this.

Any help and recommendations are greatly welcomed and appreciated!

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How much do you know?

I said it in my original post. I don't know anything past a little trigonometry due to bad schooling when I was younger and I want to be self taught.

Algebra by Gelfand and Shen
Trigonometry by Gelfand and Saul
Basic Mathematics by Lang

Depends on how serious you are about learning math rigorously, but Spivak's Calculus is a rigorous introduction. But learning proper math is really hard without a good community of people around you.

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Veeky Forums-science.wikia.com/wiki/Mathematics#Calculus

abstract.ups.edu/aata/

define proper math

Doing Spivak on your own will be very annoying.

Real and complex analysis by Walter Rudin
Functional analysis with applications by Philippe Ciarlet