An Australian Islamic State supporter who called for an anti-Islamic event in Texas to be attacked has now posted a link online to a guidebook that explains how to join the extremist group.

The 50-page e-book, called "Hijrah (Journey) to the Islamic State", was tweeted overnight by a user known as Australi Witness who has 410 Twitter followers.

It was previously posted to Islamic State supporters via social media on March 14 this year.

Read the complete original version of this item...