Songbook sees Katie exploring material from throughout her career including songs from george, Elixir and her solo albums as well as five new tracks.

It has been really interesting going through these works and seeing my evolution as a musician and my journey from a girl to a young woman through to a wife and mother."

"Spawn" was written by 'a 19-year-old girl facing the world and confronting the loss of innocence', elsewhere, "Special Ones" speaks of 'self-respect and empowerment' while "Love's My Song For You" is a tribute to 'then boyfriend, now husband and soul mate Zac,' father of Katie's sons.

"[6] Carley Hall of The Music said "Some tracks delight in their new setting, while others come off sounding oddly hamstrung by some of the orchestration that, really, should augment them to greater heights, and it's particularly and sadly true of the older hits.

But the dramatic strings that haunt "Quiet Day" and "Bluebird" fit extremely well beside Katie's piano and pitch-perfect vocal.