From now until Christmas readers will the option of visiting a B&N store, choosing one of 70 eligible paperback titles, and then picking up a matching ebook for $4.99. When checking out, the customer will receive a redemption code which they can either activate on their own account or give away as a gift.
B&N hasn't revealed the complete list of eligible titles, but there is mention that the program includes Doctor Sleep by Stephen King, Outlander by Diana Gabaldon, The Secret Life of Bees by Sue Monk Kidd, The Kite Runner by Khaled Hosseini, Life of Pi by Yann Martel, The Brief Wondrous Life of Oscar Wao by Junot Díaz, and A Discovery of Witches by Deborah Harkness.
You can find more details at your local B&N store, or on the B&N website.
I've checked a few of the prices, and they're not bad. Several of the titles are old enough that you can find the paperback and ebook pretty cheaply, but other bundled titles like Doctor Sleep do offer a good value when bought together.
B&N is far from the first to offer print/digital bundles; they are following in the path trod by HarperCollins, which launched two separate pilot programs with BitLit and Bookshout earlier this year. Those programs were spread across multiple indie booksellers, making them far more ambitious on a technical level than B&N's program. What's more, HarperCollins also tested print/digital bundles last year in the UK.
And even HC wasn't the first; textbook publishers have tried the idea on and off over the past half dozen years. O'Reilly has been offering similar bundles for years, and as you might recall Amazon launched a post facto bundle program, Kindle Matchbook, last year.