Halloween is a holiday that is celebrated on the 31st of October. The roots of this event are in the past when people celebrated New years and All saints day. The tradition to wear costumes appeared in Ireland and Scotland in approximately XIX century. It was spread in the USA in the beginning of XX century. In the fourth decade there were first mass produced costumes in the shops of the USA. In this country children wear special costumes and go to peoples’ houses while saying: “Trick or treat”. Many carve pumpkins and transform them into lanterns. There are also scary stories told, horror movies watched and pranks done.