The arid mangrove forest from the Baja California Peninsula represents a series of chapters devoted to the understanding of the biodiversity and fisheries value of this critical habitat. The book contents are devoted to making the reader aware of the great value of the mangrove in relation to their conservation and management. Mangrove forests in Mexico represent the northernmost populations along Pacific coast, and thus they are likely to be sourced populations for colonisation at higher latitudes as the climate becomes more favourable. Today, these populations are relatively small and fragmented and prior research has indicated that they are poor in genetic diversity, but in the actual global warming scenario, it is very likely that forest cover will increase and genetic diversity will increase. Another relevant component of the book will be the biodiversity inventory still in progress for many biological groups and will be taken into account in the present volume. The present volume will review and analyse some physical, biological, and ecological factors that determine the success of these communities and their use in conservation or fisheries management. Marine Protected Areas include several of the mangroves studied here and the presented information is critical for the appropriate management. The book is organised in 10 chapters to evaluate studies based on the value of the forest in arid zones of the Baja California Peninsula and the surrounding areas worldwide. This book will be essential to understand the mangroves along North-western Mexico and will also be a critical consulting book for the next generation of managers and nature lovers who want to better understand our environment.