Natalie Frisk has worked in ministry for over 15 years. She earned a master's in theological study (biblical studies) and is pursuing a doctorate in practical theology with an emphasis on the spiritual experience of children. While she was the curriculum pastor for a multisite church, Natalie published Raising Disciples: How to Make Faith Matter for Our Kids (Herald Press, 2019). She is now director of curriculum for RaiseUpFaith as she continues doing what she loves: content developing, team building, and pastorally nurturing the souls of whomever she encounters. María Diaz Perera was born in Gijón, a small seaside town in northern Spain. When she was very young, she found that there were few things that she enjoyed as much as listening to The Beatles and drawing. She graduated with a degree in art history, and soon after that she studied graphic design. María has worked as a freelance illustrator for several international publishers, magazines, and advertising agencies, and she loves to work on portraits and children's books.

She is inspired by '60s and '70s music, literature, and cinema, and she loves to spend time with family and friends. She still listens to The Beatles and feels fortunate to make a living doing what she loves most--illustration.