Back when I was first thinking about writing a book on interstellar flight, my reading began with Adrian Berry’s fine study The Giant Leap: Mankind Heads for the Stars. A science writer and novelist, Berry was science correspondent for The Daily Telegraph from 1977 to 1997, and is now the paper’s Consulting Editor (Science). The Giant Leap ranged through the various propulsion options and explained the history of the interstellar idea, but I found it more inspiring still in its expression of human motivations and the urge to explore. Looking at our human history of migration and exploration, Berry liked in particular the parallel between the settlement of the Polynesian islands and our future among the stars:

This is a good reading list.  I've read most of these books, and the one big issue that doesn't get proper treatment, IMO, is whether human interstellar travel will ever be practical. To read the rest of the article, click here.