English Publishers

·Cambridge:
Objective pet:
- level: pre intermediate
- pages: 208
- colors: green, yellow and Light blue
- authors: Louise Hashemi ; Barbara Thomas
Engineering:
- level: universitary
- pages:112
- colors: brown with yellow
- authors: Mark Ibbotson

·Oxford:
English file:
- level: Intermediate
- pages: 80
- colors: black, white and green
- authors: Christine Latham – Koeing and Paul S.
Headaway:
- level: Upper - intermediate
- pages: 144
- colors: Grey and purple
- authors: Liz and Joane Soars

·Macmillan:
Spotlight:
- level: Begginers
- pages: 136
- colors: orange and white

Super star:
- level: Begginers
- pages: 124
- colors: blue and green


Diccionaries on internet
- Freetranslation: http://www.freetranslation.com. This diccionary translate very well to other languajes and you can listen it.
- Reverso: http://diccionario.reverso.net/ingles-espanol/who. This diccionary translate spanish to english, and english to spanish. This page give you examples and conjugations in english.

EFL and ESL

EFL is learn english in a place where english isn`t spoken. The english is an foreing languaje.
ESL is learn a secundary english in other country because this person only speak the primary english.