The book received mixed reviews. Publishers Weekly criticized, "Bland illustrations depicting the contents of Annabeth's trunk, a map of Camp Half-Blood and a short "sneak peek" at "The Last Olympian" pad the contents (barely) to book length; the inclusion of a crossword puzzle and a word search makes the book difficult to share. Not a must-read-but try telling that to rabid fans." School Library Journal reviewer Tim Wadham commended the writing, saying, "Despite the fact that this is more of a marketing package than anything else, the quality of and interest in the three stories likely justifies its purchase."