There are basically three things that should be included in every recommendation letter:
1. A paragraph or sentence explaining how you know the person you are writing about and the nature of your relationship with them.
2. An honest evaluation of the person's skills and accomplishments. Try to include specific examples.
3. A statement or summary that explains why you would recommend the person you are writing about.
Para su conveniencia, debajo del texto en español le brindamos la versión completa de este formulario en inglés. For your convenience, the complete English version of this form is attached below the Spanish version.