Preservation, Ruin, Honor, Cultivation, Odium, Autonomy, Ambition, Devotion, Dominion, and Endowment.
Slight spoiler for Mistborn
Look for a character named Hoid, he is normally a beggar, storyteller, or he normally insults people all the time. That is how you can tell a book is Cosmere. You can also look for a specific mention of the Cosmere. Adonalsium is another way to tell, as well as mentions of Investiture.
Rithmatist and Reckoners are not Cosmere.