How to monitor the impdp progress?

 Below queries are very useful: 

select owner_name, job_name, operation, job_mode

from dba_datapump_jobs

where state='EXECUTING' ;

select v.status, v.sid,v.serial#,io.block_changes,event
from v$sess_io io, v$session v
where io.sid = v.sid
and v.saddr in (
    select saddr
    from dba_datapump_sessions
) order by sid;

select s.sid, s.module, s.state,
       substr(s.event, 1, 21) as event,
       s.seconds_in_wait as secs,
       substr(sql.sql_text, 1, 30) as sql_text
from v$session s
join v$sql sql on sql.sql_id = s.sql_id
where s.module like 'Data Pump%'
order by s.module, s.sid;