| Written by | Caleb Burroughs and Kathy Broderick |
| Illustrator | Bob Berry and Sue DiCicco |
| Published | 2013, 2015 |
| Publisher | Publications International |
| ISBN | Let's Learn!: 1450865372 Let's Learn Together!: 1450866387 |
Quiz It Pen is a line of educational book/toy sets made by Publications International in 2013. The set includes an electronic pen that plays sound clips with voices, sound effects and music. Each book poses multiple-choice questions that can be answered by holding the pen to the dot representing the answer; the pen then plays sounds letting you know if the answer is correct or not.
PI made two Sesame Street sets in the line. The first, Let's Learn!, was a single 48-page book released in 2013. The second set, Let's Learn Together!, was released in 2015, and included four workbooks: Rhyming and Reading, Numbers and Shapes, Sights and Sounds and The World Around Me.
