This will be a short informal workshop to bring together researchers interested in amplitude positivity and its applications.  It will be spread over three days and cover recent developments in formal, cosmological, and phenomenological areas.  There will be one day each on cosmo, pheno, formal, with three talks each day and some informal discussion in between.

Organisers: Brando Bellazzini (IPHT and CERN), Matthew McCullough (TH), Andrea Puhm (CPHT), Sasha Zhiboedov (TH).