This new Splash! series title, geared toward early independent readers, provides an accessible, general introduction to jellyfish in a slim format. Three short chapters highlight jellyfish characteristics or behaviors, such as their anatomy, how they swim, and the wide range of their size (“The biggest ones are the size of washing machines. The smallest ones could fit in a spoon”). Each spread presents information in well-spaced, readable text and short declarative sentences opposite full-page color photos. Open queriesinvite critical thinking and propose doing further research online with an adult. While the stock photos predominantly feature a varied range of jellyfish, they are not identified specifically. One close-up photo matter-of-factly depicts welts raised by a tentacle sting. This introductory overview will likely intrigue young readers interested in these unusual creatures.