Congressional Oversight Manual
"The Congressional Research Service (CRS) developed the Congressional Oversight Manual over 30 years ago, following a three-day December 1978 Workshop on Congressional Oversight and Investigations. The workshop was organized by a group of House and Senate committee aides from both parties and CRS at the request of the bipartisan House leadership. The Manual was produced by CRS with the assistance of a number of House committee staffers. In subsequent years, CRS has sponsored and conducted various oversight seminars for House and Senate staff and updated the Manual as circumstances warranted. The last revision occurred in 2007. Worth
noting is the bipartisan recommendation of the House members of the 1993 Joint Committee on the Organization of Congress (Rept. No. 103-413, Vol. I):

[A]s a way to further enhance the oversight work of Congress, the Joint Committee would encourage the Congressional Research Service to conduct on a regular basis, as it has done in the past, oversight seminars for Members and congressional staff and to update on a regular basis its Congressional Oversight Manual.."