Hello! Channel

'''Hello! Channel (ハロー!チャンネル), abbreviated as Haro Chan''' (ハロチャン), is the first official mook by Hello! Project. Unlike previous publications, the Hello! Channel mook showcased the members' personalities in a magazine-like way while also being as long as an ordinary book. The first volume was published by Kadokawa Mooks on April 26, 2010.

A 2-disc DVD set called '''Hello! Channel the DVD''' (ハロー!チャンネル the DVD) was released on June 17, 2010. It chronicled the making of the Hello! Channel mook and contained unreleased magazines that didn't appear in the mook.

In the following three years, eleven more volumes of the Hello! Channel official mook and DVD set were released. Volume 12 of the mook was released on April 22, 2013 as the final volume, and its corresponding DVD was released on June 12, 2016.

Starting with Volume 4, first press copies of the mook came with a poster as a bonus.

Kadokawa Marketing released a Hello! Channel corner in their mobile app "Ugoku!! Shashin Shuu powered by The Television" where digital editions of the mooks were made available.