![Sheldon's journal.
Sheldon's journal.](data:image/png;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs=)
Sheldon's JOURNAL.
The Big Bang Theory Season 3, Episode 13
![- Really? Your potty-training journal?
- Yeah.
- Really? Your potty-training journal?
- Yeah.](data:image/png;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs=)
- Really? Your potty-training JOURNAL?
- Yeah.
The Big Bang Theory Season 6, Episode 3
![Research journal, entry one.
Research journal, entry one.](data:image/png;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs=)
Research JOURNAL, entry one.
The Big Bang Theory Season 3, Episode 10
![No, that's my potty-training journal.
No, that's my potty-training journal.](data:image/png;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs=)
No, that's my potty-training JOURNAL.
The Big Bang Theory Season 6, Episode 3
![I read it
in the Journal of American Neuroscience.
I read it
in the Journal of American Neuroscience.](data:image/png;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs=)
I read it
in the Journal of American Neuroscience.
The Big Bang Theory Season 1, Episode 3