A short Russian course can consist of a limited number of lessons, or even one lesson/consultation, with a specific goal in mind: learning basic travel vocabulary, delivering a speech, preparing for an exam etc.
Are a convenient way of boosting up your language skills for those who are limited on time or budget.
Are available at all levels, from complete beginner to advanced.
Will help you to learn simple phrases or refresh your existing Russian knowledge.
Allow you to consult the teacher about certain aspects of the language or get help with an exam or project, or learn a speech or presentation with the help of a professional.