From the NY Times Arts Beat Blog:
This week’s Book Review introduces revamped best-seller lists, the result of many months of planning, research and design.
On the Web, there are three entirely new lists. One consists of rankings for fiction and nonfiction that combine print and e-book sales; one is limited exclusively to e-book sales for fiction and nonfiction; and the third, Web-only list tracks combined print sales — of both hardcover and paperback editions — for fiction and nonfiction.
All the other lists, though presented in reworked formats, will be familiar to readers.