| Category | Code | Location |
|---|---|---|
| Technological Artifacts of the Lower Holocene | ARTIFACT | 1 (reserve) |
| Booklet Double | BD | 1 (reserve) |
| Binary Star [doubles] | BS | 1 (reserve) |
| Ace Double | D | 1 (reserve) |
| Dictionary | DICT | 1 (reserve) |
| Eraserhead Double | ERD | 1 (reserve) |
| Gryphon Double | GRD | 1 (reserve) |
| Gollancz Double | GZD | 1 (reserve) |
| Millennium Binary [doubles] | MB | 1 (reserve) |
| Ocean View Doubles | OVD | 1 (reserve) |
| Large Reserve Art | R/L-ART | 1 (reserve) |
| Very Large Reserve Fiction | R/VL | 1 (reserve) |
| Very Large Reserve Art | R/VL-ART | 1 (reserve) |
| Very Large Reserve Anthology | R/VLA | 1 (reserve) |
| Even Bigger Reserve Art | R/XL-ART | 1 (reserve) |
| Tor Double | TD | 1 (reserve) |
| (New Books) | 2 (reserve) | |
| Large Reserve Comics | R/L-CX | 3 (reserve) |
| Small Reserve Comics | R/S-CX | 3 (reserve) |
| Very Large Reserve Comics | R/VL-CX | 3 & 4 (reserve) |
| (Recent Magazines) | 3 & 4 (reserve) | |
| Large Reserve Reference | R/L-REF | 4 (reserve) |
| Reserve Multimedia | R/MM | 4 (reserve) |
| Small Reserve Reference | R/S-REF | 4 (reserve) |
| Very Large Reserve Reference | R/VL-REF | 4 (reserve) |
| Even Bigger Reserve Fiction | R/XL | 4 (reserve) |
| Even Bigger Reserve Comics | R/XL-CX | 4 (reserve) |
| Even Bigger Reserve Reference | R/XL-REF | 4 (reserve) |
| Even Bigger Reserve Anthology | R/XLA | 4 (reserve) |
| Foreign-language Hardcover Anthology | FH | 5 (reserve) |
| Foreign-language Hardcover Anthology | FHA | 5 (reserve) |
| Foreign-language Paperback Anthology | FP | 5 (reserve) |
| Foreign-language Paperback Anthology | FPA | 5 (reserve) |
| Small Circulating Reference | S-REF | 6 |
| Very Large Circulating Reference | VL-REF | 6 & 7 |
| Large Circulating Reference | L-REF | 7 |
| Even Bigger Circulating Reference | XL-REF | 7 & 8 |
| Circulating Mixed Media | C/MM | 9 |
| Large Circulating Comics | L-CX | 9 |
| Small Circulating Comics | S-CX | 9 |
| Very Large Circulating Fiction | VL | 9 |
| Very Large Circulating Comics | VL/CX | 9 |
| Very Large Circulating Anthology | VLA | 9 |
| Small Anthology | SA | 10 -- 17 |
| Small Fiction (authors A-L) | S | 17 -- 54 |
| Large Fiction | L | 55 -- 79, 111 -- 145 |
| Large Anthology | LA | 80 -- 82, tops of 92 -- 110, tops of 83 -- 87 |
| Small Fiction (authors M-Z) | S | 83 -- 110 |
For all but a few oddball categories the shelfcode format is (Items in brackets are optional.):
[R/] size [-category]
"R/" means "on reserve, does not circulate." Additionally, the following also don't circulate: DICT, ARTIFACT, foreign books, doubles (e.g., Ace Doubles), and anything on the New Books shelf. With those exceptions, anything that doesn't have the "R/" prefix does circulate.
