  Algorithms used for the reconstruction and identification of electrons in the
central region of the ATLAS detector at the Large Hadron Collider (LHC) are
presented in this paper; these algorithms are used in ATLAS physics analyses
that involve electrons in the final state and which are based on the 2015 and
2016 proton-proton collision data produced by the LHC at $\sqrt{s}$ = 13 TeV.
The performance of the electron reconstruction, identification, isolation, and
charge identification algorithms is evaluated in data and in simulated samples
using electrons from $Z\rightarrow ee$ and $J/\psi\rightarrow ee$ decays.
Typical examples of combinations of electron reconstruction, identification,
and isolation operating points used in ATLAS physics analyses are shown.
