The Forever Portfolio: How to Pick Stocks That You Can Hold for the Long Run (2008) by James Altucher
The author presents an interesting (though far from novel) thesis: Invest in things for which there may be a strong need in the future. For example, he recommends investing in biotech companies that develop vaccines because certain diseases may become more prominent as the world's population grows; invest in companies that purify and distribute water because clean water may end up in short supply; invest in internet companies associated with potential growth trends; and so forth. The big problem with this book is that it is a haphazard mix of the author’s opinions, backed by little research, and it amounts to speculation (and his internet ideas are terrible). While there is some potential for big gains if you hit upon the right future need, the approach is far too risky and you could easily end up losing a lot of money.
Note: I read this book in August 2011.