The Ghana international finalised a season-long loan deal with the Merseyside outfit yesterday.
The 22-year-old joined Chelsea from Porto last summer, but spent last season on loan at Vitesse Arnhem before moving to Goodison Park for a temporary stint.
"It is a really good move for me because they play good football and are a hard-working team," Atsu told reporters in this morning's press conference. "They also have a great coach with fantastic fans.
"This is my first season in the Premier League and it is a really high level or me. It is a big opportunity to prove myself."