빅데이터 및 데이타관리 관련 무료 이북입니다.
https://www.packtpub.com/packt/offers/free-learning
https://www.packtpub.com/packt/free-ebook/hadoop-explained
https://www.packtpub.com/packt/free-ebook/practical-data-analysis
https://www.packtpub.com/packt/free-ebook/what-you-need-know-about-r
https://www.packtpub.com/packt/free-ebook/creating-mysql-database
https://www.packtpub.com/free-ebook/sql-server-integration-services
https://www.packtpub.com/free-ebook/r-deep-learning-essentials
From @phiskim