Automapper is a library that helps map one object to another. Writing code to stuff an object into another can be really boring. It’s pretty common to see something like this in a copy constructor while working with entities and dtos:

        public MyEntity(MyDTO other)
	{

                …
		this.Property1 = other.Property1;
		…
	}

One of the nice things about Automapper is that it will match properties by name. This came in handy when writing the data access layer for a nosql database. Automapper made it easier to write generic crud functionality that mapped entities taken from the db to a dto.
Get example in our base class:

        …
        /// 
 Gets a single entity as a DTO instance. 
        protected TDataObject Get(Guid id) 
            where TTableEntity : class, ITableEntity, new()
            where TDataObject : class, new()
        {
            return Mapper.Map(GetEntity(id));
        }
        …