School librarians are experts at so many things: navigating the seas of digital information to find an elusive article, creating interactive forums in which kids learn to collaborate and create, and, of course, critically selecting materials. Some have been reading and reviewing books for so long they can smell a stinker from a mile away or recognize a gem in the first few, precious opening sentences. Librarians can do no wrong here; it is their vocation, their calling, their bread and butter. But a new leviathan has emerged--the eStorybook. These eStorybooks can take on many formats: (1) PDFs on eReaders; (2) web-based books; and (3) interactive apps that can be downloaded in multiple devices. They are similar to regular eBooks but offer more functions (animation, audio narration, dictionaries, etc.) and, of course, the stories are illustrated. School librarians have already become skilled at practicing the art of choosing respectably published, decently formatted eBooks to "place on the shelf." But when it comes to choosing superior eStorybooks for young, emerging readers, it's time for librarians to buckle down once again. eStorybooks are simultaneously condemned as antagonistic to comprehension, but championed as imperative to development. Who's telling the truth? It's all the more essential for school librarians to take a closer look at what constitutes a "good" eStorybook. This article discusses the top five contenders for quality eStorybooks. (Contains 3 online resources.)