Head to Bunch of Grapes bookstore in Vineyard Haven on Friday, April 5, from 5 pm to 7 pm, for a book fair kickoff party with special guest author Gregory Mone. Bunch of Grapes will donate 20 percent of all sales to Island libraries from April 5 to 12. Mone, a bestselling author and co-author with Neil deGrasse Tyson, will present “The History of the Universe in 15 Minutes.”