Field guides and other identification resources for wildlife species found in the continental US and Canada

Field guides and other identification resources for wildflower species

Field guides and other identification resources for flowers, including both wildflowers and cultivated flowers

Field guides and other identification resources for plant species

Field guides and other identification resources for pets, farm animals, other animals kept in captivity by humans

Field guides and other identification resources for things other than plants or animals

Field guides and other identification resources for sea fish species

Field guides and other identification resources for fish species, including both freshwater and marine species

Field guides and other identification resources for sea creatures other than fish, mammals, reptiles, and birds.

Field guides and other identification resources for seashells (marine mollusks)

Field guides and species identification resources focused on sea life and/or freshwater wildlife.

Books that are or appear to be guides to the identification of species or types of wildlife, nature, or other things.

Field guides and other identification resources for wildlife species found in the Europe, including the Great Britain and the British Isles

Field guides and other resources for the identification of tree species

Field guides and other identification resources for planted flowers, garden plants and other plant species cultivated by humans

Field guides and other identification resources for fish species found on tropical or subtropical coral reefs

Field guides and other identification resources for freshwater fish species

Field guides and other identification resources for wildlife species found in South America

Field guides and other resources for identifying marine mammals, including whales, dolphins, seals, etc.

Field guides and other resources for the identification of mammal species

Field guides and other identification resources for wildlife in Central America (Guatemala, Belize, Honduras, Nicaragua, Costa Rica, and Panama)

Field guides and other identification resources for wildlife in Mexico

Field guides and other identification resources for wildlife found in Australia

Field guides and other resources for wildlife identification that cover all regions of the world

Field guides and other identification resources for wildlife species found in Africa

Field guides and other identification resources for wildlife species found in East Asia (China, Japan, Korea, Taiwan, Mongolia, Russian Far East).

Field guides and other identification resources for wildlife species found on tropical or subtropical coral reefs

Field guides and other identification resources for marine plants and algae, including seaweed, underwater plants, and plants that grow on the seashore.

Field guides and other identification resources for wildlife species found in the islands of the Caribbean Sea and adjacent regions

Field guides and other identification resources for coral species

Field guides and other identification resources for wildlife species found in Southeast Asia

Field guides and other identification resources for the Lepidoptera, including butterflies, moths, skippers, and their caterpillars, cocoons, and chrysali.

Field guides and other identification resources for insect, spider, and other non-marine arthropod species

Field guides and other identification resources for reptile and amphibian species

Field guides and other resources for the identification of mushrooms and/or other species of fungi.

Field guides and other identification resources for terrestrial and freshwater invertebrate species other than arthropods. E.g. worms, snails, etc.