Update 2015-12-11: Added BEP 102c
In a presentation, signposting is giving the audience information about where they are in the presentation and where they'll be going.
In presentations, a transition is the action / process of finishing one topic and moving to another.
(See this post of mine for a video on signposting and transitions: Presentations: Video with Signposting and Transitions )
Here are some links with useful vocabulary, articles, audio and exercises for signposting and transitioning in presentations.
G.A.L.E.S.L. / joe3
Some tips and links on learning English.