With any kind of researching or indexing, a key part of remembering key information is note-taking. They are a neat little breadcrumb for how to progress onwards, or a tidy hint for how to structure the essay you’re about to start writing.
The problem with noting in books is that sometimes, either you're going to want to use it again for another project or you are borrowing the book in the first place. As such you can’t really make permanent notes in it.
One of the cool products in our back to school collection are Iconic's Sticky It Tracing Notes. These are sticky notes that are specifically designed to for writing in textbooks and decorating planner pages. As they're translucent, you can note, underscore, highlight, scribble the text in your books but you don’t make a mark on the page itself. Cool right?
They work just as well as plain ol’ sticky notes and are perfect for non study related activities too - like indexing a recipe book or writing a passive-aggressive note to your flatmate.