PVA glue is the UK name for Polyvinyl acetate, a component of a widely used glue type.
It is also commonly referred to as wood glue, white glue, carpenter's glue, school glue, or Elmer's glue in the US.
It sticks paper, card, craft foam, balsa wood and other porous surfaces such as fabric.
PVA glue has so many uses besides sticking things together, you can use its as a glaze on craft projects, like decoupage.
It can be bought cheaply at craft stores and supermarkets.