After four straight quarters of declining sales, Simon & Schuster gained $4 million (or 2 percent) in the third quarter, with sales of $203 million. (While that’s an improvement from $199 million in the same quarter a year ago, it’s still well below where third quarter sales have been previously: $224 million recorded in 2013, $220 million in 2012, and $210 million in 2011.) More consistent are the division’s profits, which have remained robust even as sales have generally ebbed over recent quarters: They had OIBDA of $42 million in the third quarter, up $1 million from the previous year, and operating income […]