In the face of ecological emergencies this book explores and experiments with the meanings and implications of being and organizing in a relational world. From a position of vulnerable optimism it attempts to engage in accessible ways with the typically inscrutable ideas of sociomateriality and posthumanism. The perspective of entanglement that is developed, and associated dilemmas considered, involve searching for possibilities of giving voice to voiceless more-than-human others. This book is about prompting imaginings of possibilities for responsible-being and collective flourishing that can be hopeful for us all.