2. Changing or shifting to new topics, points or sections
2.1. Sequence
Firstly...secondly... (British)
First...second... (North American)
First of all (colloquial)
Next,
After that, / Afterwards,
Note the difference between the North American style (first, second, third...) and British
style (firstly, secondly, thirdly); chose one style and use it consistently. For any form of
English, ‘first of all’ is colloquial style