Sarah Weinman on “Heather,” by Caitlin Mullen, and three more new books. By Sarah Weinman Novels by Colson Whitehead and Daniel Mason, the final “Heartstopper” graphic novel, gripping thrillers, lush ...

Systems analysis is the study of a complex system’s interacting parts, while keeping a eye on their function in the integrated whole. Systems analysis is often called upon to evaluate the safety of ...