the book is called "School of Life" https://www.theschooloflife.com/shop/tsol-press-who-am-i-jou... and it's designed to be written in. it's a series of self-exploration exercises, where it supports someone who is exploring themselves in some way.

I don't rate it highly, but the person who I was gifting it to expressed an interest in trying it.

the three copies I had were all completely filled by other people, meaning I'd received three peoples deepest internal reflections and outpourings in addition to the books all being ruined by being so heavily written in. I've no idea where Amazon gets their books from, these were all sold by Amazon (which was my attempt to try and avoid marketplace things).

I can see why you'd imagine study aids, I guess that happens too.