The nature and origin of creativity is the subject of many a theory. But, rather than theorizing about it, wouldn’t it be great if we could just lift the lid of a great creative mind and see just how the machinery works? Well, we sort of can — by way of great creators’ private notebooks and sketchbooks, which offer a trip to as close to the creative process as we can get. After last week’s rare look at Michelangelo’s, here are five cross-disciplinary favorites, spanning everything from street art to field science.

GRAPHIC DESIGN

Steven Heller is easily today’s most prominent and prolific design critic. In 2010, he partnered with the SVA’s Lita Talarico on an ambitious project: Graphic: Inside the Sketchbooks of the World’s Great Graphic Designers, which offers a rare glimpse of how today’s most acclaimed designers think and create. The project features 110 designers, including icons like I ♥ New York logo creator Milton Glaser, Design Observer co-founder Michael Bierut, typography maverick Oded Ezer, the amazing Marian Bantjes, negative space master Noma Bar, 2010 Guggenheim Fellow Amy Franceschini, and my personal favorite, Stefan Sagmeister.

Images courtesy of Monacelli Press via Flavorwire

Flip through the goodness here.

STREET ART

In Street Sketchbook: Journeys, Tristan Manco takes a rare peek inside the sketchbooks of 26 of the world’s hottest new graffiti artists. From Brazil’s iconic favelas to Tokyo’s backalleys, it reveals both globe-trotting adventures and rich internal landscapes in 227 large-format pages and lush double-spreads of pure creative genius.

Full review, with more images, here.

FIELD SCIENCE

I firmly believe science is a creative discipline, so no look at the creative mind is complete without a look at the scientific mind. Field Notes on Science and Nature offers exactly that thought beautiful reproductions of pages from the journals of the world’s greatest field scientists. Twelve essays by professional naturalists from such diverse disciplines as anthropology, botany, ecology, entomology, and paleontology contextualize the doodles, drawings and marginalia with equal parts infectious curiosity and affectionate enthusiasm.

Kirstin Butler’s full review here.

ADVERTISING

In 2009, creative academics and researchers Glenn Griffin and Deborah Morrison set out to investigate the minds of the advertising industry’s greatest creative thinkers in a series of experiments, analyzing the “process drawings” of these top creative professionals — artwork that answered the deceptively simple question, What does your creative process look like? The results, illustrated with a Sharpie on what Griffin and Morrison call a “process canvas,” were published in The Creative Process Illustrated: How Advertising’s Big Ideas Are Born — a fascinating glimpse of the routes leading creatives take to finding and catching ideas.

Original review here.

ART

Drawn In: A Peek into the Inspiring Sketchbooks of 44 Fine Artists, Illustrators, Graphic Designers, and Cartoonists is the second gem of a book artist Julia Rothman — a voyeuristic visual journey into how artists doodle, brainstorm and flesh ideas out. The lavish volume offers a rare glimpse inside the minds and hearts of favorite artists like visual poet Sophie Blackall, happiness-designer Tad Carpenter, nature illustrator Jill Bliss and many more, showcasing stunning full-color images alongside profiles of the artists, who discuss their sketchbooks and how they use them.

The recent full review, complete with more images and an exclusive Q&A with Rothman about the project, here.