The Institute for Advanced Humanistic Studies at Peking University invites submissions to the “PKU 2019 SPIRITUAL HUMANISM SYMPOSIUM–A Book Project in Honor of Professor Tu Weiming On the Occasion of His 80th Birthday.” The deadline is 31 May 2019; details are here.
Thanks for this, as I have had an abiding interest in nonreligious spirituality for some time, which I suppose might also be called humanistic spirituality or even spiritual humanism. See, for example, here: https://www.religiousleftlaw.com/2013/05/the-marxist-spirituality-of-clr-james.html