CREATE TABLE table_31181 ("#" FLOAT, "Title" TEXT, "Author" TEXT, "Doctor" TEXT, "Featuring" TEXT, "Read by" TEXT, "Published" TEXT, "ISBN" TEXT)

THe audio book with ISBN 978-1-4084-6879-1 is read by whom?
SELECT "Read by" FROM table_31181 WHERE "ISBN" = 'ISBN 978-1-4084-6879-1'
SELECT "Read by" FROM "table_31181" WHERE "ISBN" = 'ISBN 978-1-4084-6879-1'