Poet and undertaker Thomas Lynch has combined his two occupations to produce his new book, “The Undertaking: Life Studies from the Dismal Trade.” (W. W. Norton) The work is a collection of essays whose topics range from the scheme to use cemeteries as golf courses to poignant stories from his twenty year career as an undertaker. Lynch says he thinks that the meaning of life is connected to death, and his book primarily discusses the impact of the dead on the living.