The Labour leader's capability in TV studios, confidence in media engagements and demeanour in the House of Commons have all been the subject of great focus and in many cases criticism since he was voted into the role in September. One PRWeek writer commented that he had been a "walking talking billboard for the PR industry" in his first days in the job.
The appointment of Guardian journalist Seumas Milne as the party's comms director last month also raised eyebrows.
A blog published yesterday (Tuesday) on the Channel 4 News website by political editor Gary Gibbon reported that "Corbyn was, on the advice of his media team, booked in for professional media training last Friday".
However, it went on to say that Corbyn turned up an hour late for the 90-minute session, saying he had forgotten about the appointment.
PRWeek contacted the Labour Party press office, and was told to contact Kevin Slocombe, who was made Corbyn's interim spokesman shortly after he became leader. Slocombe did not respond to PRWeek's request for comment before publication of this article.