These "books" are sealed on Yom Kippur. This concept of writing in books is the source of the common greeting during this time is "May you be inscribed and sealed for a good year."
Hivi “vitabu” hufungwa wakati wa Yom Kippur. Dhana hii ya kuandika katika vitabu ndiyo chanzo cha salamu ya kawaida katika wakati huu “Upate kuandikwa na kufungwa kwa mwaka mzuri.”