Acceptable uses include: PowerPoint presentations, web pages, lectures and academic conference presentations, learning materials, online tutorials, tests, coursework, student presentations and projects.
 

Users may not use images or tutorials for commercial or profit-making purposes, e.g. publication in books, journals, or any printed product that is sold for profit; promotional material, commercial web pages, electronic journals or paid consultancy work.

If you want to use any of the material from this site for a purpose not permitted by this agreement, you must contact the Dmitry Rakov directly.

The nternational copyright laws protect material on the  site.