Studio 56 is pleased to recommend this book.
Carreras, Bartolomé and Lapin's "Barcelona: Five Routes for Sketching Travelers" offers brief illustrative texts, drawings, and maps of sketching locations followed by fully blank pages.
Layers of Looking Online Workshop with Ian Fennelly
Ian Fennelly's Sketch Tour of Europe
Design on the Fly Online Workshop
Urban Sketching Sunflower Edition Online Workshop with Ian Fennelly