SEO 2017: Master Search Engine Optimization (Unabridged)
2017
SEO for Business: The Ultimate Business-Owner's Guide to Search Engine Optimization: SEO University, Book 3 (Unabridged)
2015
SEO Strategies & Tactics: Understanding Ranking Strategies for Search Engine Optimization: The SEO University, Book 2 (Unabridged)
2014
El Arte de la Persistencia [The Art of Persistance]: Secretos Simples Para Lograr El Éxito a Largo Plazo [Simple Secrets to Achieving Long-Term Success] (Unabridged)
2017
El Mercader de Seda [The Silk Merchant]: Palabras de Sabiduría Antigua para Ayudarle Hoy a Vivir una Vida Mejor (Unabridged)
2016
Startup Marketing: 23 Online Marketing Strategies to Help Create Explosive Business Growth (Unabridged)
2016