Simplify the following text for a Grade 6 native English-speaking person.
Original: Filoni also has a note book sized planner on his desk with Plo Koon 's picture taped to the outside , and he has written the words `` Plo Kool '' on concept art designs for the Clone Wars , indicating that he liked those designs .
Simplified: Filoni also has a note book sized planner on his desk with Plo Koon 's picture taped to the outside .