The ITT Dublin Library has an agreement with openstax college who have made available a number of free books covering many subjects.
The full list of books can be found here:
I have reviewed the Biology, Microbiology and Concepts in Biology books and think they are all well written and applicable to the course. If you need to read extra material to help you understand your notes I can wholeheartedly recommend them. If you’ve any queries just give me a shout.
Concepts in Biology:
This book by the US department of health and human sciences “Inside the Cell” is freely available on Google Books and offers a really nice explanation of the entire eukaryotic cell and all it’s components. Well worth a read.
You can have a look at it on Google Books here or download the pdf version from here
As well as the books in the library Google Books can offer a great resource for learning about biology.