Wesleyanism, or
Wesleyan theology, is a movement of
Protestant Christians who seek to follow the "methods" or
theology of the eighteenth-century evangelical reformers
John Wesley and his brother
Charles Wesley. More broadly, it refers to the theological system inferred from the various
sermons, theological
treatises, letters, journals, diaries, hymns, and other spiritual writings of the Wesleys and their contemporary coadjutors such as
John William Fletcher.