“Honestly, work just sucks for too many people,” says Laszlo Bock, head of human resources at Google Inc. That, he says, is why he is so eager to give away the lessons he has learned in the course of taking Google from 3,000 to 53,000 employees since his arrival in 2006. He has a new book out April 4 called “Work Rules!” (Note the exclamation point.) He frequently speaks at conferences on both coasts, including one hosted by Google itself, called re:Work. When Mr. Bock speaks, people tend to listen. He is essentially the godfather of “people operations,” a term for the modern version of human resources invented at Google that has spread to countless other tech companies.