Answer:
This question requires a personal answer with your own opinion. I will give you an answer that you can use as a model, and change it or adapt it as you please.
Explanation:
This type of exam is the most complete and complex of all, and probably the one that you "suffer" the least during your life as a student.
As its name suggests, you can have your book and / or your notebook with you, to be able to freely review what you consider necessary.
As you can imagine, during these exams you will not be subjected to great surveillance, except to prevent you from copying answers from other students.
These exams can be tremendously difficult, which is precisely why teachers don't mind you looking at your book.
Your level of preparation for this type of exam must be maximum (although that same recommendation should really be applicable to any type of exam, do not settle for the minimum). Once this is achieved, the main advice I can give you is that you carry your book / notebook well organized, since time is limited and you will need to go to the information efficiently:
- Underline and make marginal notes in your book, so you don't have to search a "sea of words" for data.
- Include models and diagrams in your notebook, if they allow you to use the notebook, to help you recognize ideas and their interactions quickly.
- Use dividers in your book / notebook. These will help you find the topics you need to search without having to turn page by page, as they tell you before opening the book.