There are many good books out on “attachment theory” and one I would highly recommend is: “Attached: The New Science of Adult Attachment and How It Can Help you Find – And Keep – Love” (2010) by Amir Levine and Rachel S.F. Heller. Helpful to therapists and lay people alike, this book covers some of the basics about attachment theory, the research that backs it up, and then moves into helpful understanding regarding different attachment styles.
The three main styles covered by Levine and Heller are anxious, avoidant, and secure. Not only do the authors unpack each style in caring and compassionate ways, also offered is helpful assistance in recognizing the pitfalls of each style, seeing the ‘up’ side of each style, and developing ways to become more conscious of one’s own style such that new and effective ways of interrelating can be developed.
We all have a style! And we all have attachment needs. The more a person knows about their style and natural needs, and learns to deal in a self-caring way around these matters, the more potential there is for finding and sustaining love!