- Exploring according to og the frog, Og the frog series, book 2., Betty G Birney
- Mysteries according to humphrey, Humphrey series, book 8., Betty G Birney
- Birney, Betty G, Humphrey's tiny tales, 6
- Humphrey's playful puppy problem, Betty G. Birney ; illustrated by Priscilla Burris
- Humphrey's great-great-great book of stories, Betty G Birney
- Humphrey's big birthday bash, Humphrey's tiny tales series, book 8., Betty G Birney
- The world according to Humphrey, Betty G. Birney
- Humphrey's really wheely racing day, Humphrey's tiny tales series, book 1., Betty G Birney
- Summer according to humphrey, Humphrey series, book 6., Betty G Birney
- Humphrey's really wheely racing day, Betty G. Birney ; illustrated by Priscilla Burris
- Birney, Betty G, Humphrey's tiny tales, bk. 04
- School days according to Humphrey, Betty G. Birney
- Adventure according to Humphrey, Betty G. Birney
- Mysteries according to humphrey, Humphrey series, book 8., Betty G Birney
- Humphrey's mixed-up magic trick, Betty G. Birney ; illustrated by Priscilla Burris
- Humphrey's playful puppy problem, Humphrey's tiny tales series, book 2., Betty G Birney
- The humphrey audio collection, books 8-11, Mysteries according to humphrey; winter according to humphrey; secrets according to humphrey; imagination according to humphrey., Betty G Birney
- Humphrey's school fair surprise, Humphrey's tiny tales series, book 4., Betty G Birney
- Secrets according to humphrey, Humphrey series, book 10., Betty G Birney
- Summer according to Humphrey, Betty G. Birney
- Adventure according to Humphrey, Betty G. Birney
- Birney, Betty G, Humphrey adventures, 7
- Birney, Betty G, Humphrey adventures, bk. 12
- Friendship according to humphrey, Humphrey series, book 2., Betty G Birney
- Trouble according to Humphrey, Betty G. Birney
- Trouble according to humphrey, Humphrey series, book 3., Betty G Birney
- Surprises according to humphrey, Humphrey series, book 4., Betty G Birney
- Birney, Betty G, Humphrey's tiny tales, bk. 07
- Imagination according to humphrey, Humphrey series, book 11., Betty G Birney
- Spring according to humphrey., Betty G Birney
- Surprises according to Humphrey, Betty G. Birney
- Summer according to Humphrey, Betty G. Birney
- Life according to Og the frog, Betty G. Birney
- Life according to og the frog, Og the frog series, book 1., Betty G Birney
- Imagination according to humphrey, Betty G Birney
- Spring according to Humphrey, Betty G. Birney
- Exploring according to og the frog., Betty G Birney
- Humphrey's pet show panic, Betty G. Birney ; illustrated by Priscilla Burris
- Humphrey's creepy-crawly camping adventure, Betty G. Birney ; illustrated by Priscilla Burris
- Wildlife according to og the frog, Betty G Birney
- Humphrey's big-big-big book of stories, Betty G Birney
- Birney, Betty G, Humphrey's tiny tales, bk. 05
- Winter according to humphrey, Humphrey series, book 9., Betty G Birney
- The world according to Humphrey, Betty G. Birney
- Humphrey's pet show panic, Humphrey's tiny tales series, book 7., Betty G Birney
- Humphrey's treasure hunt trouble, Betty G. Birney ; illustrated by Priscilla Burris
- Friendship according to Humphrey, [a novel], Betty G. Birney
- Wildlife according to og the frog, Og the frog series, book 3., Betty G Birney
- Secrets according to humphrey, Humphrey series, book 10., Betty G Birney
- Secrets according to Humphrey, Betty G. Birney