I always recommend three readily available documents to help understand the unique (Read: Sede Vacante) situation in which The Church finds itself today.
NOTE: These should be read Ad Seriatum (i.e. in 1-2-3 order) for continuity.
1. CHRIST DENIED by Fr. Paul Wickens;
2. THE PROBLEMS WITH THE NEW MASS by Dr. Rama Coomaraswamy.
These may be obtained directly from TAN Publishers - Box 424 Rockford, IL 61105 or wherever traditional books are sold; and
3. WHAT HAS HAPPENED TO THE CATHOLIC CHURCH?
by Frs. Dominic & Francisco Radecki, CMRI. This too can
be had where traditional items are sold or directly from
Mary Immaculate Queen Center - No. 8504 St. Michael's
Rd. - Spokane, WA 99217 (Attn.: Sr. Mary Dominica,
CMRI, or:
miqcenter@stmichaels.org if you prefer to 'e-mail'
her directly on the 'net').
Milt Nelson - Rathdrum, ID, USA