Learn to create an isometric building in Adobe Illustrator through this comprehensive 28-minute tutorial. Begin with a simple square, duplicate and rotate it to form a cube, then use the lasso tool to stretch it into a building shape. Utilize the 'extrude & bevel' tool for isometric text and shapes. Design windows using the '3D' tool and duplicate them with the 'transform' tool. Apply basic trigonometry to determine window placement angles, and finish by adding decorative isometric trees. Follow along step-by-step to master techniques for creating 3D-like structures in a 2D environment, enhancing your vector illustration skills.