Authors discuss therapeutic potential of reading activity, partially still unknown. Starting from Menninger's work in the early 30's until most recent studies from Frude, Berns, Comer who confirmed its efficacy in both the so-called non-organic diseases and chronic pathological conditions. Their studies strongly suggested psychobiological mechanisms through which reading activity exerts its therapeutic effects. The Authors of this paper hope that bibliotherapy in the next future may become a suitable tool in the therapeutical management of the these diseases.