SkypeforBusinessQuickStartGuide-ContactsPresenceandIM.PDF - Quick Reference about instant messaging and presence

SkypeforBusinessQuickStartGuide-SharingandCollaboration.pdf - Quick Reference about sharing and collaboration

SkypeforBusinessQuickStartGuide-Video.pdf - Quick Reference about starting a video call

SkypeforBusinessQuickStartGuide-AudioSetupandMakingCalls.pdf - Quick Reference about audio setup and making calls

SkypeforBusinessQuickStartGuide-Meetings.pdf - Quick Reference about meeting/conferencing