Though honestly, for the most part, those trades are all so widely unrelated that reading order doesn't matter too much. Batgirl: Year One comes before The Killing Joke. Infinite Crisis before Identity Crisis before Final Crisis. You should really read all of the Sandman ongoing before hitting Endless Nights, though I guess it doesn't matter too much, it will be more enjoyable.

Anyway, let me know if you have any trouble with the excel thing and I'll try and help you more specifically.

No problem – let me know how the excel thing goes if you try it.

The tagging a book as in your collection thing would be really awesome if I get it working. I think it would make the site a lot more useful. I'd also want to add in an option to sort your collection list in several different ways – by reading order, chronological, alphabetical, etc.

Awesome!

Getting in the new books tonight has taken a little longer than I expected, but I promise I'll be working on the add to collection thing soon :D

Yeah, that was my problem with CBDB too. It's a really awesome website (and I'm super happy to link them on every book, because this site wouldn't be possible without them) but it didn't help me organize my collection at all. Keep track of it, maybe, but not organize.

Reading Orders wouldn't really work there because you kind of need one subjective viewpoint to keep a master list – it's not something thousands of fans are ever going to agree on. I like being really open to feedback, but when it comes down to it, people want a simple answer, even if it's not perfect. So this site is to answer that "What's next?" question as quickly as possible.

Ok, it's sorted now, and now you can add from the reading order pages. Go ahead and give it a shot and see if/how it works!