A neighborhood bookstore on Chicago’s far north side is on the verge of giving up the ghost after nearly 20 years in business. “As walk-in sales have declined, the store has expanded its services by providing textbooks required for local college courses and by supplying books for sale at academic and other conferences on such topics as adoption, infertility and women’s studies. They’ve also buttressed their bottom line with bulk sales to libraries, schools and corporations.” But in the end, it may not be enough.