When working with mixed media art, it is often recommended that beginner artists start with PVA glue as an adhesive and experiment with other Mod Podge substances to finish off collages and decoupages. One can also try fabric glue when incorporating textiles and contact cement for a more permanent adhesion. It is best to research the kind of material you are using and determine its durability and how strong you would prefer the adhesive to be. Different adhesives are available for different materials, however, the most common type is PVA glue.