For our March 19 issue, in which we compile 2011 book sales figures from publishers in hardcover, paperback, and e-books, we are extending the deadline for submissions to Feb. 22 and also upping the threshold for adult e-books to 25,000, from 10,000. The threshold of children’s and YA titles remains 10,000 for e-books.

Complete details for submitting adult figures can be found here; complete details for children’s submissions can be found here.

If you have any questions, please contact Daisy Maryles for adult at dmaryles@publishersweekly.com and Diane Roback at roback@publishersweekly.com.