Most publications by Bert Hellinger are with the publisher Carl Auer International, and many translations for his works are published here in the United States with Zeig, Tucker & Theisen Publishing.

Here is a shortlist for very good introductiory texts (with links):

Bert Hellinger, Gabriele ten Hovel, and Colleen Beaumont, Acknowledging What Is: Conversations With Bert Hellinger, Zeig, Tucker & Theisen (September 1999), ISBN-13: 978-1-89194-432-1.

Bert Hellinger, No Waves Without the Ocean: Experiences and Thoughts, Carl Auer International (2006), ISBN 978-3-89670-548-8.

Bert Hellinger, Insights: Lectures and Stories, Carl Auer International (2002), ISBN 978-3-89670-281-4.

Bert Hellinger, Gunthard Weber, and Hunter Beaumont, Love's Hidden Symmetry: What Makes Love Work in Relationships, Carl Auer International (1998), ISBN 978-1-891944-00-0.

Daan van Kampenhout, Tears of The Ancestors: Victims and Perpetrators in the Tribal Soul, Zeig, Tucker & Theisen (2008), ISBN 978-1-932462-98-2.

Jakob Robert Schneider, Family Constellations: Basic Principles and Procedures, Carl Auer International (2007), ISBN 978-3-89670-594-5.

Bertold Ulsamer, The Art and Practice of Family Constellations: Leading Family Constellations as Developed by Bert Hellinger, Carl Auer International (2003), ISBN 978-3-89670-398-9.