The book is punctuated by guest contributions, including one essay and four commissioned games, each discussed alongside various prototype materials.

This album also featured several guest contributions in both performing and songwriting.

Press Play features several guest contributions from hip hop and R&B musicians, producers, and ghost writers.

The album also features guest contributions in the forms of vocals, saxophone and guitar.

The song features guest contributions from Chris Brown.

An often-witty look at developments on the UK and international political scene, with a variety of guest contributions and discussions.

The only guest contribution by KA.

The song features guest contributions from American singer Dev.

Love After War also features guest contributions by Lil Wayne.

Today's guest contribution comes from one of the most intrepid travellers we have come across.