Scientists and engineers have to present technical information effectively. But when they do it, they face language difficulties which are beyond formal grammar as taught at school. To overcome this problem, we designed a systematic course for technical writing aimed at breaking such language barriers by planned channeling of the scientific message. The course was designed to improve the communication skills of scientists and engineers. In keeping with this goal effective writing criteria were defined and formal presentation conventions were described. Because Hebrew is the common language in Israel, problems of Hebrew structures were presented. The massive infiltration of vocabulary and syntactic elements from foreign languages into scientists' Hebrew style were addressed. An evaluation apparatus was also applied and future prospects of the course were discussed.