Since you took the seminar you should be okay with textbooks. Break the books down into chapters and treat each chapter as a book in itself.
You're probably stuck on a purpose. What does the teacher want you to know from the book and how will passing the subject help you with your goal? Think about that you'll work out your purpose for each chapter.
To ask questions from the book ,if you want a detailed insight, turn each chapter heading or subheading into a questions or three. The following paragraphs should answer those questions.
Also for textbooks you can PhotoRead them more often.
Manual activation is important if you really want to develop your body mind connection so you can get your studies done faster.
Work in 20 minute blocks when it comes to activation. Give yourself 10 minutes of the 30 minute study period for mind mapping and review. Take a break if you plan to study longer in a day. And repeat the process.
If you are mind mapping you can review in 3 minutes at the start. Find the next questions you want answered, activate with Superreading and dipping for 20 minutes. Mind map in the last 7 minutes. If you want to mind map as you activate I suggest you don't pick up the pen for the first 10 minutes. That way you focus on activating and only writing what is necessary.
Alex