Join Lisa Pearson, Head of the Arnold Arboretum Horticultural Library, at the Arboretum on Saturday April 16 at 3 pm as she discusses her new book Images of America – Arnold Arboretum. She will speak about the extensive photograph collections of the Arboretum and how she used them to tell the institution’s story. Copies of the book will be available for sale and signing. Free, but registration requested at 617-384-5277.