definily agree with eryan on seeing things you never understood in the LOTR. Like the whole line of gandlafs infront of the balrog in moria and just the balrong in general. There are some great parts to the book! but some of the chapters are long and dull.
I also have the Silm in paperback. I love it. It is a great book. There are some boring bits but on the whole a great book. It also explains a lot about LOTR. I really have learned a lot since reading it.