Christoph Niemann is our favorite children’s book illustrator and today is a big day because it’s the day he releases his latest gem: That’s How! — an absolutely lovely invitation to explore the inner workings of the world visually, through the pursuit of what we hold as our highest ideal for navigating life: Reckless, indiscriminate curiosity.

Playful, quirky and delightful, the book is a cover-to-cover treat for parents, kids and eternal children of all ages, tickling our fancy as we imagine a whimsical alternate reality behind our worn mundanity.

That’s How! is Niemann’s follow-up to a string of gems, including I LEGO NY, The Police Cloud and Subway.