Matthew K. Spencer has an author's page on Amazon, see:
United Kingdom https://www.amazon.co.uk/~/e/B00I2R1M2I
Amazon.com (The Americas) https://www.amazon.com/~/e/B00I2R1M2I
Germany https://www.amazon.de/~/e/B00I2R1M2I
France https://www.amazon.fr/~/e/B00I2R1M2I
India https://www.amazon.in/~/e/B00I2R1M2I
Japan https://www.amazon.co.jp/~/e/B00I2R1M2I
Spain https://www.amazon.es/~/e/B00I2R1M2I
Italy https://www.amazon.it/~/e/B00I2R1M2I
Brazil https://www.amazon.com.br/kindle-dbs/entity/author?asin=B00I2R1M2I
