Highlighting on physical books has it’s drawbacks - highlights are difficult to retrieve, some highlights when read out of context does not make sense, unable to retrieve highlights when you do not have your book physically with you unless you have a digital archive.
If you own an Amazon Kindle, you have to take take advantage of its highlights feature. You may highlight texts by dragging your finger across the text, you can even add notes to your highlights. Imagine doing that on a paperback book! All highlights and notes are then saved on your Kindle, for your to retrieve whenever.
Have a read on our post here. You can access them on Blipps.io by exporting your “My_Clippings.Txt” file, and it will be sorted by books and easily accessed on your account.