Three tutorials have been written. The first one presents different RESP charge derivation approaches using the Ante_R.E.D.-1.x and R.E.D. III.x programs. The second one describes the R.E.DD.B. database. The third one provides demonstrations of the use of R.E.D. Server. It is advised to first read "Tutorial -I-", and then "Tutorial -II-" and/or "Tutorial -III-". Indeed, data generated during the first tutorial are used in the second and third ones.