If you mean the issues of the main Marvel Star Wars (2015-) comic focusing on his time on Tatooine then no I don't think so, think they're in volumes 2 and 3 of the trades for that?
Yeah.. there should be a TPB on that. They don't really appear in a specific pattern throughout the star wars comic series so a collection would be good.
There's always (?) an opening and closing sequence in the context of the main storyline, so putting all the journal issues together as their own book would read kind of jarringly, I think.
There's only been three (plus the upcoming yoda story) issues so far so I wouldn't say there's really enough content there to start a collection.