  The wind braking model and its applications of magnetars are discussed. The
decreasing torque of magnetars during outbursts, anti-glitch, and
anti-correlations between radiation and timing are understandable in the wind
braking model. Recent timing observations of magnetars are also consistent with
the previous modeling. A magnetism-powered wind nebula and a braking index
smaller than three are the two predictions. Besides isolated magnetars, there
may also be accreting magnetars in binary systems and magnetars accreting from
fallback disks. Observationally, ultra-luminous X-ray pulsars may be accreting
magnetars, while super-slow magnetars may be magnetars with fallback disks in
the past. Many works are needed for both isolated magnetars and accreting
magnetars.
