Chemistry Lessons Books in Order

The Chemistry Lessons books are standalone contemporary romances built around women who work in STEM. Engineers, scientists, and researchers take center stage here, and that changes the whole texture of the series. The heroines are smart, capable, and often a little overprepared for everything except love. Susannah Nix leans into that gap with a lot of affection, so the books feel both nerdy and very human.

Each story follows a new couple, but the books are linked by friendship, shared workplaces, and a similar kind of humor. Remedial Rocket Science starts with Melody taking an aerospace job in Los Angeles and running into the one-night stand she would rather forget. Intermediate Thermodynamics and Advanced Physical Chemistry keep the focus on women in technical fields whose love lives are much messier than their resumes.

The science matters, but it never swallows the romance.

Nix uses those careers for more than cute window dressing. The job details shape how the heroines think, how they solve problems, and how they protect themselves. Olivia in Applied Electromagnetism is all sharp edges and defensive logic when a work trip strands her with a man she cannot stand. Brooke in Experimental Marine Biology is deep into graduate school when an old friend upends the careful lines of her life. Mia in Elementary Romantic Calculus arrives in Crowder, Texas, with a long-term plan and discovers that feelings are harder to chart than a career path.

Brains are part of the fantasy here.

The tone stays light on its feet even when the emotions get serious. There are one-night stands that turn into workplace problems, enemies forced into close quarters, friends who stop pretending they are just friends, and city women who find themselves rethinking everything in a small town. The books are funny and openhearted, but Nix does not smooth away the awkward parts. Her characters worry about class, reputation, heartbreak, and whether they can trust their own judgment.

Because every book focuses on a different couple, you can start anywhere. Still, reading in order gives you a fuller sense of the friend group and the way the world widens over time. By the later books, the series stretches from labs and offices into Crowder, Texas, and quietly opens the door to the King Family stories. If you want romantic comedies with genuine workplace detail, strong heroines, and chemistry that feels earned, this is a very easy series to sink into.