When we last heard from my project of reading the Hugo-award winning novels, I was at #22. I recently added #23 and #24.
I looked at the list of novels and decided to read the most recent one I hadn't read. That would be Forever Peace, by Joe Haldeman, the 1997 winner. But I knew that Haldeman's The Forever War had won the 1976 Hugo. Thinking that FP was the sequel to TFW, I decided I needed to read them in order.
Well, I was wrong, but that didn't matter. Forever Peace was another novel on the same subject as The Forever War, but in a different setting. The subject was war. I enjoyed them both, although The Forever War suffered from a goofy idea of what life would be like in the early 21st century. Forever Peace suffered from being too much of a cyberpunk novel -- I don't buy the whole nanotechnology hype.
On the other hand, TFW is the only SF novel I've ever seen that sets a section in the adjacent town of Hyattsville.