Yarn: Fingering weight sample (right) is knit with multiple sock yarns, using about 150g/580 yards total, allowing for slightly different weights among yarns. See On yarn choice below for more specifics.
Laceweight is knit with Noro Kirameki Singles (discontinued), colors 156 and 164, 50g/492 yards per skein. Used 50g/492 yards total.
Needles: Fingering weight sample uses US5 circulars, laceweight US4
Notions: Stitch marker, tapestry needle
Gauge: This design does not require an exact gauge, unless you’re trying to achieve a very specific final diameter… if you are, swatch! Choose needles that achieve the drape you prefer with the yarn you’re using. In blocked fingering weight sample, 16 rows (one entrelac block) is 1.75”.
Finished size: Fingering weight sample is 34” diameter at bottom edge, 27” at top. Unblocked it was 20” at the bottom, so this piece will end up significantly larger than it seems on your needles.

On yarn choice
While the pattern gives specifics for the pictured samples, it is very flexible. Change yarn thickness, needle size, number of entrelac blocks and/or tiers, or bookshelf lace rows to your liking. Note that changes will result in a different diameter and/or height. Your yardage will also change. The following yardages are guidelines so you have something to start with if you plan to adjust the pattern to your preferred size: Fingering weight sample used 87g/approx 345 yards for the Entrelac section, 55g/215 yards for Bookshelf Lace, and 5g/20 yards for Booktop Cast-off.

Entrelac is fantastic for yarns with long color changes, as in the laceweight sample, and would also break up the progress of a gradient skein in a lovely way. Or use up bits and ends of different yarns, like I did in the fingering sample. Because of entrelac’s density and texture, woven-in ends are easy to hide. The number of colors in your Bookshelf is limited only by the number of ends you’re willing to weave.