How many levels are there?
The Common European Framework of Reference for Languages: Learning, Teaching, Assessment, abbreviated as CEFR, is a guideline used to describe achievements of learners of foreign languages across Europe.
The Common European Framework divides learners into three broad divisions that can be divided into six levels:
A Basic User
A1 Breakthrough or beginner
A2 Waystage or elementary
B Independent User
B1 Threshold or intermediate
B2 Vantage or upper intermediate
C Proficient User
C1 Effective Operational Proficiency or advanced
C2 Mastery or proficiency