The video above is the Resident Evil Revelations 2 Episode 2 Tower Emblems Locations Guide and shows the locations of all Tower Emblems Collectibles in Episode 2: Contemplation, of RE Revelations 2.
There are 30 collectibles that can be found in Episode 2: Contemplation, divided into the following categories:
9 Tower Emblems
6 Kafka Drawings
6 Insect Larvae
9 Documents Files