The purpose of creating a Blue and Yellow Volleyball Tournament Poster is to advertise and promote an upcoming volleyball tournament that is going to be held. The poster is designed to attract attention, generate interest, and provide essential information to potential participants and spectators about the tournament's date, time, location, and registration details. The blue and yellow color scheme is likely chosen to be visually appealing and eye-catching, helping the poster stand out from other advertisements. Overall, the poster's goal is to raise awareness and encourage people to participate or attend the tournament.