The story of a family never ends, says Thea Lenarduzzi—the literary critic and author of the prize-winning family memoir Dandelions: "It’s always evolving, rewriting itself, long after the protagonists are dead." Here, she recommends five books on family history that illustrate the shapeshifting nature of this hard-to-pin-down subject, in which memories rarely tally with the written record.

The Irish-based writer says studying families is a fascinating way to learn about the past, and tells us about the books that have inspired his own investigations