Complex sentence: He first appeared in the book "Trueman Bradley-Aspie Detective", a debut novel for young readers written by Alexei Maxim Russell and published in 2011 by Jessica Kingsley Publishers.
Split into simpler sentences: He first appeared in the novel, "Trueman Bradley-Aspie Detective". The novel was written by Alexei Maxim Russell and published in 2011 by Jessica Kingsley Publishers.