  Recently, the Dirac and Weyl semimetals have attracted extensive attention in
condensed matter physics due to both the fundamental interest and the potential
application of a new generation of electronic devices. Here we review the
exotic electrical transport phenomena in Dirac and Weyl semimetals. Section 1
is a brief introduction to the topological semimetals (TSMs). In Section 2 and
Section 3, the intriguing transport phenomena in Dirac semimetals (DSMs) and
Weyl semimetals (WSMs) are reviewed, respectively. The most widely studied
Cd3As2 and the TaAs family are selected as representatives to show the typical
properties of DSMs and WSMs, respectively. Beyond these systems, the advances
in other TSM materials, such as ZrTe5 and the MoTe2 family, are also
introduced. In Section 4, we provide perspectives on the study of TSMs
especially on the magnetotransport investigations.
