A boy who is 6 years old or is in the first grade is a Tiger, and his adventures are found in the Tiger Handbook.

 A boy who is 7 years old or is in the second grade is a Wolf, and his adventures are found in the Wolf Handbook

A boy who is 8 years old or is in the third grade is a Bear, and his adventures are found in the Bear Handbook.

 A boy who is 9 and 10 years old or is in the fourth or fifth grade is a Webelos Scout, and his adventures are found in the Webelos Handbook.