This week's feature is not a book, but a collection of images not to be missed. The Illinois Built Environment collection provides to the public for the first time, a first-hand view of select original documents used to shape the campus of the University of Illinois at Urbana-Champaign. Among others, items include hand sketches of campus plans, original trace and linen drawings of many of the Central Quadrangle buildings, four separate proposed sketches for the original Library, now known as Altgeld Hall, and watercolor renderings for the display of the Alma Mater and many buildings. Many of the documents are common elevation architectural drawings. Some provide information that can inform the educated eye about building materials and the use of various construction techniques. Many are reflective of design trends of the times and some show comments and notes of the architect. This collection will grow over time as more original drawings, sketches and renderings are released for public use. Pictured below are four photographs taken during the construction of the fifth stack addition to the Main Library. The digitization of this collection was spearheaded by Joanne Kaczmarek, Archivist for Electronic Records, and funded by the Library's Large Scale Digitization Project in 2007.