Personal notes
You can add personal notes to any item on the reading list. Nobody else will be able to view your annotations.
You may find it useful to add personal notes to the references, especially if the book or the article you have read is a good resource for one of your future essays. You may want to make a note of selected pages, or the chapter that covers the topic you will be writing about, and you can use as supporting evidence for your argument.
To add a personal note, go to a reference on the reading list. Select the 3 dots on the right hand side of the screen, then choose Personal note. Add the text and ensure you save the message. You can edit and delete the notes at any time.

Remember that you can use the Filter drop down menu at the top of the reading list to refine to references that you have annotated.