per·se·ver·ance /ˌpərsəˈvirəns/ noun: perseverance persistence in doing something despite difficulty or delay in achieving success. 𝐓𝐡𝐢𝐬 𝐛𝐨𝐨𝐤 𝐢𝐬 𝐚 𝐂𝐨𝐨𝐤𝐢𝐞 𝐑𝐮𝐧 𝐨𝐧𝐞𝐬𝐡𝐨𝐭 𝐛𝐨𝐨𝐤.