What are some recommended IB textbooks?

[MadelynnSienna 0]

So, I'm starting my 1st year of the IB Diploma Programme in a couple of months and was wondering what are some good textbooks, study guides and course companions for these subjects? I've seen quite a few for all the subjects I'm planning to take and that's definitely confused me a lot.

My subjects are as follows,

• English Language & Literature SL
• Spanish Ab Initio SL
• Psychology HL
• Biology HL
• Maths AA SL

As of now I'm still pretty unsure as to what I'm taking as my sixth subject, but its between,

• Business Management / Economics / Chemistry (HL)

If anyone could give me some advice on the undecided subject, that'd be great!! Anyways, I'll probably updated this (if I can) with my final subjects very soon. 

Thanks for the advice

Edited March 25, 2021 by MadelynnSienna