People flock in, nevertheless, in search of answers to those questions only librarians are considered to be able to answer, such as “Is this the laundry?” “How do you spell surreptitious?” and, on a regular basis, “Do you have a book I remember reading once? It had a red cover and it turned out they were twins.”
Terry Pratchett, Going Postal
That Book You Can’t Remember
Have you ever wanted to find a copy of a book you used to know, but you can’t remember the title, or the author? 
What do you remember about it? And are you still looking?
Myself, I’d like to find a copy of the vintage children’s craft book we used to have when I was a kid. Can’t remember the title, the author, the cover… just some of the projects inside. A toy lamb with coathangers stiffening its legs, a set of simple garden tools…
The First Book
What’s the first book you remember reading?
I still remember the day I started reading: I took the book off the nice lady at the kindy mid-read and told her that I could read it myself. The page, as I recall, was a billowy dark grey, a picture of a storm, perhaps. What the book was, alas, I no longer remember.
What about you?