Carter and Curtis have written a practical and fascinating book for adult educators, including those in Extension.
Most training manuals are cookbooks of workshop recipes.
It is written for the trainer who has subject-matter expertise, but may not have a background in adult education. As the subtitle implies, both theory and practice are included and the result incorporates what we know about adult learners. Carter and Curtis don't emphasize the distinctions between adult and child learners. Their background in human development helps them to see both children and adults as active learners who construct knowledge through interaction with things, ideas, and other people. This discussion, supported by thinkers such as Jean Piaget and Eleanor Duckworth, may surprise some readers.