You'll have 9 days in Dallas doing a lot of "indoc" type stuff. You'll have 2 instructors come by and give you a briefing on what to expect for your first big hurdle which is systems. Systems is a 4 day block with quite a bit of information thrown at you, followed by a few self study days, a 'Pre Oral" and then your actual Oral. That seems to be the most stressful period of training, everything else seems easier as you go along. They should send out material to new hire pilots before they show up for Day 1. I'd say taking a look at the systems material ahead of training makes the 4 days of Systems go a lot smoother.