||Key works. There are various seminal works that open the discussion. Of course, Lipman’s books Harry Stottlemeier's Discovery (N.J.: IAPC, 1974) and, together with Ann Sharp, Philosophical Inquiry. (Instructional Manual to Accompany Harry Stottlemeier's Discovery) (N.J.: IAPC, 1975) started the discussion. Very early a metaphilosophical discussion was triggered with the monographic issue of Metaphilosophy, v. 7, no. 1, Jan. 1976, edited by Terrell Ward Bynum, titled: What is philosophy for children?—An introduction. In a footnote, they explained: In the present volume, “Philosophy for Children” means philosophy for children in grades K‐8. Two other books, Philosophy in the Classroom, with Ann Margaret Sharp and Frederick S. Oscanyan (1st edition, N.J.: IAPC, 1977) and Growing Up With Philosophy, ed. with Ann Margaret Sharp (Philadelphia: Temple University Press, 1978), offered a metaphilosophical reflection about the program. In 1980, Gareth Matthews published another very important book, Philosophy and the Young Child (Harvard, 1980). All those publications can be considered as the seminal works, and since then, many other articles and books have sustained a discussion with those who still are doubtful about, or just deny, the possibility of a philosophical reflection by children. And it is also a subject of ongoing reflection for all those committed to the dissemination of philosophy with/for children.