| # | Book Title | Author | |
|---|---|---|---|
| I Spy a Balloon | Marzollo, Jean | ||
| I Spy a Butterfly | Marzollo, Jean | ||
| I Spy a Candy Cane | Wick, Walter | ||
| I Spy a Christmas Tree | Marzollo, Jean | ||
| I Spy a Circus | Marzollo, Dan | ||
| I Spy a Dinosaur's Eye | Marzollo, Jean | ||
| I Spy a Funny Frog | Marzollo, Jean | ||
| I Spy a Penguin | Marzollo, Jean | ||
| I Spy a Pumpkin | Marzollo, Jean | ||
| I Spy a Rocket Ship | Marzollo, Dan | ||
| I Spy a Runaway Robot | Marzollo, Dan | ||
| I Spy a Scary Monster | Marzollo, Jean | ||
| I Spy a School Bus | Marzollo, Jean | ||
| I Spy a Skeleton | Marzollo, Jean | ||
| I Spy A to Z: A Book of Picture Riddles | Marzollo, Jean | ||
| I spy an Apple | Marzollo, Jean | ||
| I Spy an Egg in a Nest | Marzollo, Jean | ||
| I Spy Animals | Marzollo, Jean | ||
| I Spy Christmas: A Book of Picture Riddles | Wick, Walter | ||
| I Spy Extreme Challenger!: A Book of Picture Riddles | Wick, Walter | ||
| I Spy Fantasy: A Book of Picture Riddles | Wick, Walter | ||
| I Spy Fun House: A Book of Picture Riddles | Wick, Walter | ||
| I Spy Funny Teeth | Marzollo, Jean | ||
| I Spy Gold Challenger!: A Book of Picture Riddles | Wick, Walter | ||
| I Spy I Love You | Marzollo, Jean | ||
| I Spy Letters | Marzollo, Jean | ||
| I Spy Lightning In The Sky | Marzollo, Jean | ||
| I Spy Little Animals | Marzollo, Jean | ||
| I Spy Little Book | Marzollo, Jean | ||
| I Spy Little Bunnies | Wick, Walter | ||
| I Spy Little Christmas | Marzollo, Jean | ||
| I Spy Little Hearts | Marzollo, Jean | ||
| I Spy Little Letters | Marzollo, Jean | ||
| I Spy Little Numbers | Marzollo, Jean | ||
| I Spy Little Toys | Marzollo, Jean | ||
| I Spy Little Wheels | Marzollo, Jean | ||
| I Spy Merry Christmas | Marzollo, Jean | ||
| I Spy Mystery: A Book of Picture Riddles | Wick, Walter | ||
| I Spy Nature: A Book of Picture Riddles | Wick, Walter | ||
| I Spy Numbers | Marzollo, Jean | ||
| I Spy Phonics Fun | Marzollo, Jean | ||
| I Spy Pirate Treasure | Marzollo, Dan | ||
| I Spy Rocket Ship | Marzollo, Dan | ||
| I Spy Santa Claus | Marzollo, Jean | ||
| I Spy School | Marzollo, Jean | ||
| I Spy School Days: A Book of Picture Riddles | Wick, Walter | ||
| I Spy Spectacular: A Book of Picture Riddles | Marzollo, Jean | ||
| I Spy Spooky Night: A Book of Picture Riddles | Wick, Walter | ||
| I Spy Super Challenger: A Book of Picture Riddles | Wick, Walter | ||
| I Spy Thanksgiving | Marzollo, Jean | ||
| I Spy Treasure Hunt: A Book of Picture Riddles | Wick, Walter | ||
| I Spy Ultimate Challenger: A Book of Picture Riddles | Wick, Walter | ||
| I Spy Year-Round Challenger!: A Book of Picture Riddles | Wick, Walter | ||
| I Spy: 4 Picture Riddle Books | Marzollo, Jean | ||
| I Spy: A Book of Picture Riddles | Wick, Walter | ||
| I Spy: Imagine That! | Marzollo, Jean |