The book is structured to be as much a tutorial as it is a gallery. Step-by-Step Tutorials
The PDF is superior for active study (copying, zooming, layer analysis). The physical book is superior for passive inspiration (flipping through before bed). The ideal scenario? Own both. But if you must choose one for learning purposes , choose "The Sketchbook of Loish: Art in Progress PDF." the sketchbook of loish art in progress pdf