The Orrville Public Library has a pair of events coming up next week.  The library’s annual used book sale will be held Thursday, the 21st, Friday, the 22nd, and Saturday, the 23rd.  The Book Sale will open at 10 a.m. each day and will close at 7 p.m. on Thursday, 5 p.m. on Friday and 2 p.m. on Saturday. The event will be held in the library’s downstairs community room.  The other event is a plant exchange, which will take place from 10:30am-noon on Saturday, the 23rd.  A master gardener will also be on hand to answer any plant-related questions.