If you're looking for reading to broaden your understanding of the region, you need not look much further than the many excellent bookstores (both new and used) you'll find scattered throughout the region. Among my favorite books are these:
In the Memory House, by Howard Mansfield (1993). This finely written book by a New Hampshire author provides a penetrating look at New England's sometimes estranged relationship with its own past.
Inventing New England, by Dona Brown (1995). A University of Vermont professor tells the epic tale of the rise of 19th-century tourism in New England in this uncommonly well-written study.
Northern Borders, by Howard Frank Mosher (1994). This magical novel is ostensibly about a young boy living with his taciturn grandparents in northern Vermont, but the book's central character is really Vermont's Northeast Kingdom.
Vermont Traditions, by Dorothy Canfield Fisher. Written in that somewhat overwrought style popular in the 1950s, this still remains the best survey of the Vermont character.