Start with high-confidence sunni islam books, then narrow by subgenre or adjacent topics.
The Study Quran
Seyyed Hossein Nasr, Caner K. Dagli
Seeking Allah, Finding Jesus Study Guide
Nabeel Qureshi, Kevin & Sherry Harney
Awakening Islam
Stéphane Lacroix, George Holoch
Messianic Ideas and Movements in Sunni Islam
Yohanan Friedmann
The Resurrection and the Afterlife
Ali Unal, M. Fethullah Gülen
The Islamic Jesus
Mustafa Akyol
The Islamic Moses
Exploring Islam
Salih Sayilgan
Sectarian Milieu
John E. Wansbrough, John Wansbrough
The Religion Is Easy
Adam Brown
The New Muslim Workbook
Bisma Parvez
Lessons From Surah Yusuf
Yasir Qadhi, Abu Ammaar Yasir Qadhi
Judgement Day
Omar Suleiman
Shi'i Interpretations of Islam
S. J. Badakhchani
Al-ghazali on Intention, Sincerity and Truthfulness
Abu Hamid Al-Ghazali, Anthony Shaker
The Statue of Our Souls
M. Fethullah Gülen
From God's Nature to God's Law
Abdul Rahman Mustafa
Muhammad
Robert Spencer
