This guide is amimed to provide information, ideas and suggestions for those who work with clients (young people, male and femaile, individuals and couples) and who want to improve their knowledge and skills in counselling in STI/HIV prevention, safer sex, pre and post HIV antibody testing and other issues related to the subject. Depending on the needs, the reader may use this guide in different ways. Some may find information on particular issues of interest to them, others may use the guideline to improve their skills or as a training tool for their staff.