For a brief overview of the Counsels (as well as each of the other Writings) click here
Mother Ignatius Stone, OSU. Commentary on the Writings of Saint Angela Merici : Rule, Counsels, Legacies. S.L.: S.N., 1996.
Monica [cosu.blogspot], 2011. Reflections on the Prologue & First Counsel in Light of Scripture. Reflection on the Second Counsel in Light of Scripture. 2013