How do you arrange/keep children’s book

Dear all, firstly, I would like to thank everyone who has contributed
to my recent posts/questions. I have gained and learned a lot of tips.
Thanks for sharing.

Here is my next question.
I have put all DD’s (3yo) story books in a plastic rectangle
container on the floor with the books back-to-back (not stack/pile
up). Reading time, I like DD to choose the stories. She is able to
find by looking at the cover but because of the way the books are
kept, she is only able to view the narrow side description (the way we
see it in library). If the books are leaning to one direction, it is
too heavy for her to push it in the opposite direction to view the
cover. Hope you can imagine what I am saying. A book display shelf
(staggered with books facing front) is ideal but too costly and I
don’t want all the books to be lying around on the floor. Any
idea how to display them neatly for DD to select? How are your books
kept? Thank you in advance.

jean