I just started reading the fourth book in the series A Song of Ice and Fire. Since it is 1.5 years since I finished the third book, I'm pretty confused. Can I read a summary of the earlier books somewhere without spoiling the books that I haven't read yet?
Personally I would suggest reading the Chapter Summaries on A Wiki of Ice and Fire here:
It gives a relatively short summary on a per chapter basis. The downside is that everything together is still a lot of text to read, but I think it might be worth it. At least it's a lot faster than reading the entire books again.