This chapter presents an inventory of the additive manufacturing processes using selective binding, and examines the different methods used as well as some of the achievements made. It describes the scientific challenges of obtaining a broader knowledge base with regard to the physical principles involved in the different processes used. The chapter discusses theories applied for analytically modeling the printing by selective bonding. It is clear that the physical phenomena involved in the techniques of printing using selective cement activation and selective paste intrusion are different. 3D printing by selective binding allows people to envision the ability to partially eliminate the use of formworks. When formworks are printed, the binding agent is typically a resin that reacts with a hardening component in the particle bed. The positioning of sensors within the particle beds can provide materials for digital and analytical modeling.