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I graduated Math BSc two years ago and I'm looking to start learning about category theory solo. I started to go through Lang's algebra and although I already learned about groups, normal groups etc in University, I'm having a hard time doing the exercises. Is there any more basic book for this book and other books about category theory (which is the subject I took Lang's for)?

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    $\begingroup$ I liked this one: amazon.com/Algebra-Chapter-Graduate-Studies-Mathematics/dp/… $\endgroup$ – David Wheeler Nov 5 '17 at 16:52
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    $\begingroup$ I don't think Lang's Algebra is about category theory. It is about algebra. $\endgroup$ – Somos Nov 5 '17 at 17:55
  • $\begingroup$ What do 'groups, normal groups, etc.' have to do with category theory? $\endgroup$ – anomaly Nov 5 '17 at 21:10
  • $\begingroup$ @Somos, it's not only about category theory, but it was recommended in a different question. Reading the TOC, you are right, there's nothing specially about category theory. I'll have a look on david-wheeler's suggestion $\endgroup$ – Chiptus Nov 14 '17 at 16:56
  • $\begingroup$ @anomaly I think they are used as examples, no? From my low understanding in category theory, every mathematical object has something to do with category theory. $\endgroup$ – Chiptus Nov 14 '17 at 16:57
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After going through the first chapters of Algebra: Chapter 0 as per @DavidWheeler's suggestion, I can say this answers my question. It has a very refreshing view of the algebra world, and it explains everything using categories. I'm really enjoying it and I'm getting all the review I need.

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