On Tuesday, July 23, at 5 pm the Vineyard Haven library hosts author Philip Weinstein who will share his work in progress, a volume of essays, “Soul-Error.” Weinstein, the Alexander Griswold Cummins Professor of English Emeritus at Swarthmore College, will read from his essay “Vannie,” named for the black maid who helped to bring him up in the South in the 1940s and ’50s. According to the library’s press release, the talk explores what Vannie meant to the author and his family then, before setting forth what he has come to understand, years later, about those same social arrangements. It is a study in contrasts, the release states, experienced by the author and by countless other Americans as well.