As e-books continue to capture more readers that had read mass market paperbacks, Simon & Schuster is re-launching its Pocket Star mass market line as an e-book only imprint.

“Grift Sense” (Pocket Books, 304 pages, $23.95) is a well-plotted debut mystery by James Swain that pays off handsomely with a unique look at gambling schemes and society. Grift sense, … ...

30 is the number of trees, in millions, cut down annually to produce books in the U.S. Alanna Cavanagh. The iPhone ... the Pocket Book changed everything about who could read and where.

Even 6-month-old babies can rapidly estimate approximate numbers of items without counting. But surprisingly, an apparently inborn sense for numbers doesn’t top out until around age 30. Number ...