Why publish a booklet on acronyms? Let us imagine a possible situation: A young engineer seeks assistance from his direct supervisor on how to conduct a rock typing study. The supervisor says: “It is easy, young fellow. First you get your CCA and MICP data, sort samples by PTR distribution and Pc behaviour, check for consistency, plot groups on k-PHI domain, get a best fit-line and re-group the samples by PG. Later on you can integrate SCAL, Kr, wettability etc for the RRT grouping. I hope the workflow is clear to you”. The poor engineer will be lost with so many acronyms!