public void PrintReadersByNumberOfCheckOuts()
{
Readers.Sort((reader1, reader2) => reader2.NumberOfCheckOuts.CompareTo(reader1.NumberOfCheckOuts));
PrintReadersList();
}
public void PrintReadersBySurname()
{
Readers.Sort((reader1, reader2) => reader1.Surname.CompareTo(reader2.Surname));
PrintReadersList();
}