This book interrogates the theme of vegetal sentience and consciousness in the form of trees that move purposefully and/or speak, a theme which appears in everything from classical mythology to twentieth -century and contemporary literature, which draws on this earlier work. Graham's research includes literary and scientific works on vegetal consciousness and sentience, and applies this ecocritical lens in her analysis of various works of literature, television, and film. This book aims to illustrate how sentient trees in speculative fiction help readers better understand that other beings on Earth and/or the Universe are motivated and able to act on goals and desires, even when those goals may not coincide with those of humans.