An attempt at a rough diagram. Common area is to the left of this image.

   .___________window____________.
   /                             |
  /                              |
   |                reading     b|
   |                 chair      o|
   |c                           o|_________
   |o                           k| b       |
   |u                           c|  a      |
   |c         deskdeskdesk      a|   t     |
   |h         deskdeskdesk      s|    h    |
   |          deskdeskdesk      e|     r   |
   |              chair          \      o  |
   |                              \      o |
   |_____________________________|________m|
   |      |
   |wiring|
   |_clos.|