Judith Horstman, a Sacramento, Calif. freelance, practices what she advocates and keeps her brain busy writing about the brain. Her latest book taps into the most current research to unearth secrets about the brain as it ages. Neurologists and psychologists have discovered the brain from ages 35 to 65 years is much more elastic and supple than anyone previously realized. Far from disintegrating, the aging brain can continue to develop and adapt in many ways.

University of Wisconsin Professor of Psychology Richard J. Davidson and science journalist Sharon Begley describe six distinct emotional dimensions, each with a defined and measurable neural signature. Each person’s unique combination of the six dimensions together comprise what Davidson calls “emotional style” — the essence of our personality and the reflection of how we live and respond to our experiences

Want to build your own satellite and launch it into space? It’s easier than you may think. The first in a series of four books, this do-it-yourself guide shows you the essential steps needed to design a base picosatellite platform — complete with a solar-powered computer-controlled assembly — tough enough to withstand a rocket launch and survive in orbit for three months.

Lewis is a long-time college textbook author and magazine freelancer with a Ph.D. in genetics. Her new book, The Forever Fix: Gene Therapy and the Boy Who Saved It, tells the true story of 8-year-old Corey Haas, cured of hereditary blindness with gene therapy in 2008 in just four days, when the sunlight at the zoo hurt his eyes, for the very first time.