Transitions serve an important function in any piece of writing: they connect the ideas in sentences and paragraphs and show the reader how lines of reasoning are advancing. These simple words let the reader know when to expect more detail or when to expect a different topic or when to expect a counter-point.
There are three basic types of transitions: generic, orienting, and substantive. We will look at generic transitions this month. [excerpt]
Tenielle Fordyce-Ruff, Connections Count Part I: Generic Transitions, 60(8) Advocate 46 (2017).