From social media sensations Cate Osborn and Erik Gude, with Rennie Dyball, comes a fresh and practical guide to managing ADHD for adults.

Just shy of her thirtieth birthday, Cate Osborn, a teaching artist with two master’s degrees, started to have difficulty remembering her lines. Suddenly, things that had seemed routine before were falling through the cracks. An evaluation finally led to a diagnosis: ADHD.

Erik Gude, who was diagnosed in his teens, had a slightly different path. While ...