  With the establishment and maturation of the experimental programs searching
for new physics with sizeable couplings at the LHC, there is an increasing
interest in the broader particle and astrophysics community for exploring the
physics of light and feebly-interacting particles as a paradigm complementary
to a New Physics sector at the TeV scale and beyond. FIPs 2020 has been the
first workshop fully dedicated to the physics of feebly-interacting particles
and was held virtually from 31 August to 4 September 2020. The workshop has
gathered together experts from collider, beam dump, fixed target experiments,
as well as from astrophysics, axions/ALPs searches, current/future neutrino
experiments, and dark matter direct detection communities to discuss progress
in experimental searches and underlying theory models for FIPs physics, and to
enhance the cross-fertilisation across different fields. FIPs 2020 has been
complemented by the topical workshop "Physics Beyond Colliders meets theory",
held at CERN from 7 June to 9 June 2020. This document presents the summary of
the talks presented at the workshops and the outcome of the subsequent
discussions held immediately after. It aims to provide a clear picture of this
blooming field and proposes a few recommendations for the next round of
experimental results.
