Cultures; idioms

Advice, obligation and necessity; social English; case study; writing (letter)

Human resources

-ing forms and infinitives; getting information on the phone; case study; writing (completing a job advertisement, sequencing a letter of application)

International marketing; conditions

Negotiating; case study; doing business internationally; writing (letter)

Revision; ethics

Narrative tenses; considering options; case study; writing (e-mail)

Leadership; relative clauses

Presenting; case study; formal writing (e-mail, formal vs informal language)

Competition; idioms; passives; writing (rewriting an e-mail)

Negotiating; case study; communication style; revision