Marginally cheaper; always ask for a substantial discount off the marked prices.

The sale starts on Friday with books double the marked price and a 20 percent discount for purchases over $250.

This is almost always included in marked prices, though some top-end accommodation and eateries will add it to your bill.

But as is customary for preview sales, everything costs twice the marked price.

On Friday, the first day of the sale, the marked price of each book is doubled.

From noon to 8 P.M. on Friday, everything will be sold at twice its marked price.

Buyers pay twice the marked price in return for early access to the merchandise.

Hours on Friday and Saturday are 9 to 6, when sales will be at the marked price.

Today from noon to 8 P.M., items including first editions and rare books will sell for twice the marked price.

Any marked prices should be considered mere suggestions - this is definitely a place to bargain.