With less than 24 days left until the New Year, it's that time when we reflect on 2015.

Bill Gates isn't any different. The Microsoft co-founder and billionaire philanthropist took to his blog Monday to share the best books he has read this year.

The titles that made his final cut include: The Road to Character by David Brooks, Thing Explainer: Complicated Stuff in Simple Words by Randall Munroe, Being Nixon: A Man Divided by Evan Thomas, Sustainable Materials With Both Eyes Open by Julian M. Allwood and Jonathan M. Cullen, Eradication: Ridding the World of Diseases Forever? by Nancy Leys Stepan and Mindset: The New Psychology of Success by Carol S. Dweck.

"I just looked over the list of books I read this year, and I noticed a pattern," Gates wrote on his blog. "A lot of them touch on a theme that I would call 'how things work.' Some explain something about the physical world, like how steel and glass are used, or what it takes to get rid of deadly diseases. Others offer deep insights into human beings: our strengths and flaws, our capacity for lifelong growth, or the things we value.

"I didn't set out to explore these themes intentionally," he continued, "though, in retrospect it make a lot of sense since the main reason I read is to learn."

Accompanying his blog post and brief description of each book is an additional video of his short reviews.

This isn't anything out of the norm for Gates. He has been putting together these year-end lists for quite some time.