Start with high-confidence reform judaism books, then narrow by subgenre or adjacent topics.
Contemporary Debates in American Reform Judaism
Dana Evan Kaplan
Liberal Judaism
Behrman House, Eugene B. Borowitz
Response to Modernity
Michael A. Meyer
The Rise of Reform Judaism
W. Gunther Plaut
Recovering Jewishness
Frederick S. Roden
Why Judaism Matters
John Rosove
Samuel Hirsch
Judith Frishman, Thorsten Fuchshuber
Reform Judaism and Darwin
Daniel Langton
