My favorite C4D book: http://amzn.to/2fK4dIo
This is a two part tutorial on creating liquid text using Realflow 5 and C4D. Using realflow you can build water meshes that can be textured and backlit in cinema 4d. Hope you found this information helpful, if you have any question please pst them below. cheers.
www.bluehousedigital.com
www.caseybaker.com
www.vimeo.com/caseybaker