yarmulke
Ask the Expert: Which Kippah Should I Wear?
What's the best head covering for a newly observant Jew?
Kippot (Head Coverings) in Synagogue
Changing trends in the use or non-use of a head covering in synagogue has been an indicator of changing relations with the surrounding community.
Men’s Head Covering in Synagogue: Reform Judaism’s Views
Changing ideas about whether men should wear a kippah (skullcap) during prayer reflect development and maturation of American Reform attitudes toward tradition.