The book cover, showing a sigma in concrete rename

TID(s):

Controller: 1.014s

Template: 0.029s

Cost: br=1.0, cc=1.548, ch=0.0, cm=0.0, cm+h=0.0, cr=0.0, cs=22.0, cw=11.0, dr=36282.0, dt=2.252, dw=0.0, gqr=0.0, in=26211.0, ir=1871.0, iw=0.0, lh=0.0, lm=5.0, lr=5.0, mcs=0.012, mcu=0.486, minflt=9.0, mr=11.0, nivcsw=182.0, nreqs=43.0, nvcsw=126.0, pf=0.0, pr=0.0, stime=0.048, te=0.227, tf=0.68, tg=0.624, tm=1.139, tr=0.207, ts=0.0, tu=0.188, utime=1.5, va=82041.0