I want to study biology. I have zero previous knowledge of biology but I know Physics, Chemistry and Maths. From which book should I start? I have heard about Campbell Biology, but it is very costly in India(more than my 1 month's earning). So please suggest books that:
Are cheap ORcould be found on internet
- Require no previous knowledge of biology
- Contain no technical mistakes
- Adequately explain the topics which they deal with
- and also mention some history of the topics
I am not looking for online videos. I want books; my internet is slow and there are some other problems. You can also tell costly books--Perhaps I could find them in the library or could print it somehow. If Campbell Biology book is available online then please give me the download link.