AJ Waines has sold over 450,000 books worldwide and topped the entire UK and Australian Kindle Charts in 2015 and 2016 with her number one bestseller, Girl on a Train. She was a Psychotherapist for fifteen years, during which time she worked with ex-offenders from high-security institutions, gaining a rare insight into criminal and abnormal psychology. AJ Waines is now a full-time novelist with publishing deals in UK, France, Norway, Hungary, Germany (Random House) and USA (audiobooks).
Her fourth novel, No Longer Safe, sold over 30,000 copies in the first month, in thirteen countries. She has been featured in The Wall Street Journal and The Times and in 2016 was ranked in the Top 10 UK authors on Amazon KDP (Kindle Direct Publishing). In 2017, she signed a two-book deal with Bloodhound Books, in UK.