This conversation with Ross Crain is about integrated petrophysics. It is based on Ross Crain's online textbook titled “Crain's Petrophysical Handbook."What is the one tip geologists need to implement for better petrophysical models?  Should mineral models be used in more formations?  When is your petrophysical model complete?May this exchange serve to expand your geological knowledge on the go.For more information go to www.stoneconsulting.infoCitation: Crain's Petrophysical Handbook by E.R. (Ross) Crain, P.Eng., online at www.spec2000.net, 2019.