Scrolls return in Diablo III, with some key differences.
Diablo II had just two types of scrolls; Identify and Town Portal. Both types could be stored in tomes or books, that held up to 20 of them, for convenience. (It's not known if there are tomes in Diablo III; possibly not, since scrolls stack.)
Diablo III also has just two types of scrolls, as far as we know.
Contents
Scroll of Identify
Identify Scrolls, which work just as they have in the other games in the series. All types of magical items, including sets, uniques, rares, legendary, and others, are found unidentified.
An NPC can identify them for you in town (Deckard Cain in D2, and probably in D3 as well), or they can be identified anywhere by the use of an identify scroll.
ID scrolls now stack, which saves on inventory space. There also appear to be Books of Identify, though it's not clear why you'd need them when the scrolls stack up anyway?
Scroll of Wealth
Scroll of Wealth is a new type of scroll in Diablo III. Using this scroll allows you to sell items anywhere, even out in the dungeons. It's meant as a convenience; a way to save the time and trouble of returning to town so often.
The mechanism of using these is not yet know; presumably you'd be able to sell multiple items with one scroll of wealth, or else you'd need a whole lot of them.
Scroll of Town Portal
Town Portals are out of the game entirely. The D3 Team felt they were exploitative and made immersive combat too hard to create. So they're gone; their removal doing much to spur the creation of scrolls of wealth, as well as the salvaging system.
See the Town Portal page for much more about the D3 Team's reasoning on this issue.
Media
Images of scrolls, as seen in Diablo III.
ID scroll in the inventory. Stack of 8.
ID scrolls for sale. 30 gold.
Scroll of wealth, in the inventory.
Book of Identify?
