need help for my daughters Сообщить

we have looked through many sites and we can not find consistant information for my daughters lit report.

one site сказал(-а) his first published work was People,Places, and Things. another сказал(-а) it was The Glass Floor Which was it? i also have yet to find a complete Список of his works and she would like that # for her report. if anyone has any inof it would be a great help thanks!!