|SpongeBob's Work Diary|
|Appearance:||"Little Yellow Book"|
|List of objects|
SpongeBob's diary appears to be red in color, and the front title on the top reads "SpongeBob's Diary" in yellow font. SpongeBob appears to be holding a spatula on the cover with the #1 bestseller label located on the bottom right in light blue with purple font.
Role in the episode
Squidward reads SpongeBob's private diary to everyone at the Krusty Krab, and everyone hates him when they found out it was SpongeBob's. SpongeBob becomes sad when he found out that Squidward read it. Squidward therefore is put in a stockade. Later SpongeBob comes along, and tells him since everyone loved his diary, he published it and it became a best seller. SpongeBob then tells Squidward that it only was his work diary and that it would've been worse if he'd read his Super Personal Diary, showing it to Squidward in his hand, but he's already reading the Super Personal Diary. This gravely upsets SpongeBob, and Squidward is pelted with fruits once again. Squidward states that it's worth it and laughs while reading it.
- This is the second book SpongeBob has written with the first being The Customers of the Krusty Krab and Why I Love Them from the episode "Good Ol' Whatshisname."
- Albeit SpongeBob's Diary was publicly published, the fore-mentioned book was not.