I see that I have to bid and it is 4 days left. The current bid is $30.00, I don't want to pay anymore than that I would like to pay less if I could. So does that mean that only one person get the book?

If I get the bid, does that mean I should be ready to purchase it no later than the last day when the time is up for bidding?

I don't see where you can see the person's feedback or profile. How do you find that?

Thanks in advance.

Q1: Kind of. Someone can place items on auto bid near the very end. Their bids will keep increasing until they hit their maximum.
If you're the highest bidder, you win the item.

The time limit for the bid must be up and the reserve must be met. If you see "reserve not met", it means that the seller wants a minimum price. You will be notified if you won. Read the seller's terms for payment terms and conditions.

When the auction ends and you're the winner, you will be asked to leave feed back. It will say something like "You nned to leave feedback for n items". It will be obvious.

If the current bid is $30 and you don't want to pay anymore, then you don't bid. And you can't pay less -- there's no way to get the amount back down. (On rare occasions, someone will retract a bid so you can always check back to see if that happened. But it's rare.)

You also have no way to know what someone's high bid is. It might be sitting at $30 but someone could have a max bid of $60. You won't know. It only goes up enough to beat someone else's bid, and not up to their maximum. (Unless of course that's what it takes to beat another bid.)

And yes, only one person gets it, unless you see where it specifically says there's more than one. If you're bidding, the only way there could be more than one is a Dutch auction. If you don't know what you're doing, not a good idea to mess with that. There can be 100's of the same item if it's a fixed price item. But you don't bid on fixed price items.

If you bid and you win, you are obligated to buy the item or you can be turned in. (Likewise they are obligated to sell it or you can turn them in.) Their auction and your bid are contracts.

When you pay for it is a different matter. Look at their terms. Regardless of their terms, it's always good to pay ASAP. If you're using Paypal, there's no excuse not to pay when the auction ends. (Unless of course that is the middle of the night or while you're at work, but I mean as soon as you're able.) The sooner you pay, the more likely to get nice glowing comments in your feedback. Other sellers will like seeing glowing comments on a newbie - it's less scary. :p

As for finding their feedback, click on the little number in parenthesis next to their name. If you want a "profile" click directly on their name, but most sellers don't fill any of that junk out and it's mostly worthless. If you see a little thing saying "Me" that's their About Me page, which you may want to glance at.

Are you willing to post a link to the thing you're looking at? Or perhaps just the item number.