  Spatiotemporal structured light has opened up new avenues for optics and
photonics. Current spatiotemporal manipulation of light mostly relies on
phase-only devices such as liquid crystal spatial light modulator to generate
spatiotemporal optical fields with unique photonic properties. However,
simultaneous manipulation of both amplitude and phase of the complex field for
the spatiotemporal light is still lacking, limiting the diversity and richness
of achievable photonic properties. In this work, a simple and versatile
spatiotemporal holographic method that can arbitrarily sculpture the
spatiotemporal light is presented. The capabilities of this simple yet powerful
method are demonstrated through the generation of fundamental and higher-order
spatiotemporal Bessel wavepacket, spatiotemporal crystal-like and
quasi-crystal-like structures, and spatiotemporal flat-top wavepackets. Fully
customizable spatiotemporal wavepackets will find broader application in
investigating the dynamics of spatiotemporal fields and interactions between
ultrafast spatiotemporal pulses and matters, unveiling previously hidden
light-matter interactions and unlocking breakthroughs in photonics and beyond.
