Girl group AOA released their first photobook "Hot Summer" on July 24.

The photobook contains scenes from AOA's secret vacation - the teaser images revealed prior to the photobook's release had featured each members' unique charms.

The "hot" in AOA's photobook "Hot Summer" stands for Honey, Oasis, ad Twinkle; the photobook consists of a 108-page photobook, a 15-minute making film DVD, and AOA's poster. 30 of AOA's polaroids are included, along with the members' autographs.

The photobook can be purchased on online and offline music stores.