Here are just a few selected sketches and design contributions which will become available later today on eBay as part of Architecture for Humanity's I Love Architecture Charity Auction:

↑ Renzo Piano, La scuola a S. José di Costarica. 3/31/12, Pen, Pencil, Marker, & Post It on Trace Paper, 17.5 x 24.5

↑ Richard Rogers | Rogers Stirk Harbour + Partners, The Centre Pompidou, Screenprint, 24 x 36

↑ Michael Szivos | SOFTlab, 3D lasercut models | set of 3, Plastic light cutouts, 13 x 19

↑ Moshe Safdie, New Wing Expansion Peabody-Essex Museum, Print Ed. 47/118, 16 x 20

↑ Ball-Nogues Studio, Feathered Edge Test Print. 2010, pigment print on somerset velvet paper, 15 x 23

↑ Richard Meier, The Getty Center / I-Research Institute ed.11/20. Spring 1998, Tyler Graphics Print | Original lithograph print on paper, 20.5 x 28

↑ J. Mayer H., From Dataprotection Pattern Installations. 13.2.2012, Printed on card stock, 11.6 x 16.5

↑ Stéphane Malka, AME-LOT. 2011, digital print on photo paper, 15.5 x 23.5

↑ Philippe Rahm, Thermodynamic Planet for Humanity

↑ Axis Mundi Design, The Whitney, signed print, 15.5 x 19.75

↑ Jun Kaneko, The Operas: Madame Butterfly | Fidelio | The Magic Flute, printed and signed on archival paper, 14.5 x 30

↑ Matter Architecture Practice, 2012, pencil on canvas paper, 9.5 x 15.25

↑ Steven Holl, Concept Sketch for Museum of Fine Arts, Houston Competition. 11/05/11, Watercolor and charcoal on hot-press watercolor paper, 7 x 10

↑ Kengo Kuma, Bamboo House. March 8, 2012, Pen on gold-trimmed card stock, 10.75 x 9.5

↑ Daniel Libeskind, Emerging! | New York, 3/29/12, Ink on Trace Paper, 11 x 13.75

↑ Tod Williams + Billie Tsien, Two Hands Are Better Than One. 4/2012, Pen, pencil, masking tape on layered trace paper, 12 x 15

Check out the complete list of contributions on the I Love Architecture blog.