I do not have much to add to the great response from
@Jessica Booker - on the point about VS advice, I just thought to quote a post in which I collated some of the tips that proved most useful to me when I was doing VSs. On the point about TC interviews, to add a small caveat to Jess' points: there are a couple of firms that are known to treat the TC interview as isolated from prior ACs. In my case, when interviewing for a TC at the end of the
Slaughter and May VS, I was asked many questions and follow-ups on my motivations for commercial law, my motivations for the firm, and my general skills and competencies. However, we were notified of this well beforehand, and I expect this will be the same at any firm that deviates from the more common 'reflective' style of final TC interview. Regardless, you can simply ask the graduate recruitment team about the style and format of the final interview during the scheme itself. If your firm is among the minority who has an AC-style interview, I think your preparation should be mostly the same. The only thing to keep in mind is that since this is further down the recruitment process, you may face more scrutiny and pushback on your reasoning. Thus, when preparing, you should be even more self-critical and continuously try to identify weak points in your answers.