Big data is now at the heart of many digital projects. The Essential Data Mastery Bundle at 9to5Toys Specials features 7 great courses on MySQL, MongoDB, Hadoop, and more for $39.

Designed to be approachable for beginners, but comprehensive, this lineup of video tuition looks at the entire data workflow — from collection through to analysis. After an introduction to SQL and basic techniques for gathering data, you can follow along with ten MongoDB project builds, and take on SQL tables. Another track focuses on PostgreSQL, an open-source relational option for databasing, and you can also learn how to manipulate big data with MapReduce, before getting to grips with Hadoop distribution. It is a total of over 36 hours' tuition, and all the included courses come with lifetime streaming access.

Grab the bundle now to save 94% off the regular price for these courses.