Becoming human
This particular book by Winnicott gives insight into the roots of civilization, beginning with the mother/baby dyad as the core.
The solicitude of the "ordinarily devoted mother" is seen as the template for human beings relating intimately.
Play in the safe knowledge that mother/other provides the secure frame through her concerned presence is considered the cradle of cultural life.
The book is written in almost poetic language and should be present on any thoughtful reader's shelf.