At earlier ages, Oliver kept his journals in several notebooks, where his thoughts and experiences were hand-written.

These notebooks are currently kept by his father inside one or several boxes, with the exception of one. His notes from these days involved emotional responses, detailed stories and unimportant details.

Ever since Oliver finished his Final Paper Journal, he has switched to using his Personal Laptop to keeping his notes. Since the switch, his notes have turned to dot point form, contain little but important information and fewer emotions. Oliver has also gotten lazy with his updates, often forgetting to touch up on his journal until later and doing larger recaps.