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Buy from Amazon $26.95$0.01 $37.50 $12.50 Dec Mar Jun Sep Dec Mar Jun Sep Dec Mar Jun 2014 2015 2016 $19.30, Sep 10 4:38 pm$25.27, Nov 15 12:34 am$25.31, Nov 23 - Nov 29$25.01, Dec 1 - Dec 4$24.75, Dec 7 - Dec 9$24.99, Dec 12 - Dec 21$24.62, Dec 24 - Dec 26$24.49, Dec 28 - Jan 4$24.36, Jan 5 - Jan 10$24.23, Jan 11 - Jan 15$24.10, Jan 15 - Jan 22$23.98, Jan 22 - Jan 27$23.85, Jan 27 - Jan 31$23.72, Feb 1 - Feb 5$23.48, Feb 6 - Feb 10$23.24, Feb 11 - Feb 15$23.47, Feb 16 - Mar 2$23.23, Mar 3 - Mar 7$25.31, Mar 8 - Mar 14$25.05, Mar 15 - Apr 20$24.79, Apr 20 - Apr 24$24.54, Apr 25 - Apr 29$24.29, Apr 30 - May 3$24.29, Apr 30 - May 3$3.13, May 3 7:05 am$0.01, May 3 - Apr 25$24.04, May 4 - May 8$3.11, May 4 - May 5$0.01, May 3 - Apr 25$24.04, May 4 - May 8$1.97, May 6 - May 15$0.01, May 3 - Apr 25$23.79, May 9 - May 12$1.97, May 6 - May 15$0.01, May 3 - Apr 25$23.55, May 13 - May 18$1.97, May 6 - May 15$0.01, May 3 - Apr 25$23.55, May 13 - May 18$1.96, May 17 - May 28$0.01, May 3 - Apr 25$23.78, May 19 - Jun 14$1.96, May 17 - May 28$0.01, May 3 - Apr 25$23.78, May 19 - Jun 14$1.25, May 29 - Jun 1$0.01, May 3 - Apr 25$23.78, May 19 - Jun 14$2.00, Jun 3 - Jun 7$0.01, May 3 - Apr 25$23.78, May 19 - Jun 14$3.14, Jun 8 - Jun 9$0.01, May 3 - Apr 25$23.78, May 19 - Jun 14$3.25, Jun 10 - Jun 17$0.01, May 3 - Apr 25$23.54, Jun 15 - Jun 21$3.25, Jun 10 - Jun 17$0.01, May 3 - Apr 25$23.54, Jun 15 - Jun 21$2.99, Jun 21 - Jun 24$0.01, May 3 - Apr 25$23.30, Jun 22 - Jun 28$2.99, Jun 21 - Jun 24$0.01, May 3 - Apr 25$23.30, Jun 22 - Jun 28$2.97, Jun 26 - Jun 27$0.01, May 3 - Apr 25$23.30, Jun 22 - Jun 28$2.95, Jun 28 - Jul 3$0.01, May 3 - Apr 25$23.06, Jun 29 - Jul 2$2.95, Jun 28 - Jul 3$0.01, May 3 - Apr 25$22.82, Jul 3 - Jul 6$2.95, Jun 28 - Jul 3$0.01, May 3 - Apr 25$22.82, Jul 3 - Jul 6$2.97, Jul 4 - Jul 6$0.01, May 3 - Apr 25$22.59, Jul 8 - Jul 11$3.14, Jul 8 - Jul 13$0.01, May 3 - Apr 25$22.36, Jul 13 - Jul 16$3.14, Jul 8 - Jul 13$0.01, May 3 - Apr 25$22.36, Jul 13 - Jul 16$2.50, Jul 14 - Jul 17$0.01, May 3 - Apr 25$22.13, Jul 17 - Jul 26$2.50, Jul 19 - Jul 26$0.01, May 3 - Apr 25$21.90, Jul 27 - Aug 2$2.00, Jul 27 - Jul 29$0.01, May 3 - Apr 25$21.90, Jul 27 - Aug 2$1.95, Jul 30 - Jul 31$0.01, May 3 - Apr 25$21.90, Jul 27 - Aug 2$2.00, Aug 1 - Aug 2$0.01, May 3 - Apr 25$21.68, Aug 2 - Aug 7$2.50, Aug 3 - Aug 4$0.01, May 3 - Apr 25$21.68, Aug 2 - Aug 7$2.99, Aug 6 - Aug 8$0.01, May 3 - Apr 25$21.46, Aug 8 - Aug 11$2.99, Aug 6 - Aug 8$0.01, May 3 - Apr 25$21.46, Aug 8 - Aug 11$2.98, Aug 10 - Aug 14$0.01, May 3 - Apr 25$21.24, Aug 12 - Aug 22$2.98, Aug 10 - Aug 14$0.01, May 3 - Apr 25$21.24, Aug 12 - Aug 22$2.99, Aug 15 - Aug 24$0.01, May 3 - Apr 25$21.34, Aug 23 - Aug 29$2.99, Aug 15 - Aug 24$0.01, May 3 - Apr 25$21.34, Aug 23 - Aug 29$2.98, Aug 25 - Aug 26$0.01, May 3 - Apr 25$21.34, Aug 23 - Aug 29$2.99, Aug 27 - Sep 15$0.01, May 3 - Apr 25$21.33, Aug 31 - Sep 5$2.99, Aug 27 - Sep 15$0.01, May 3 - Apr 25$21.15, Sep 7 - Sep 13$2.99, Aug 27 - Sep 15$0.01, May 3 - Apr 25$21.25, Sep 15 - Sep 22$2.99, Sep 20 8:41 am$0.01, May 3 - Apr 25$21.25, Sep 15 - Sep 22$2.98, Sep 22 5:30 am$0.01, May 3 - Apr 25$21.35, Sep 24 - Sep 29$2.99, Sep 24 1:04 am$0.01, May 3 - Apr 25$21.35, Sep 24 - Sep 29$2.48, Sep 27 4:28 am$0.01, May 3 - Apr 25$21.35, Sep 24 - Sep 29$2.50, Sep 29 6:05 am$0.01, May 3 - Apr 25$21.56, Oct 1 - Oct 6$2.85, Oct 1 - Oct 2$0.01, May 3 - Apr 25$21.56, Oct 1 - Oct 6$2.84, Oct 6 8:13 pm$0.01, May 3 - Apr 25$21.34, Oct 8 - Oct 16$2.83, Oct 8 10:34 pm$0.01, May 3 - Apr 25$21.34, Oct 8 - Oct 16$2.64, Oct 11 7:02 am$0.01, May 3 - Apr 25$21.34, Oct 8 - Oct 16$2.10, Oct 15 12:01 am$0.01, May 3 - Apr 25$21.12, Oct 17 - Oct 22$2.38, Oct 16 - Oct 17$0.01, May 3 - Apr 25$21.12, Oct 17 - Oct 22$2.36, Oct 19 - Oct 20$0.01, May 3 - Apr 25$21.12, Oct 17 - Oct 22$2.32, Oct 22 11:17 pm$0.01, May 3 - Apr 25$20.90, Oct 27 - Nov 7$0.01, May 3 - Apr 25$0.01, Oct 27 - Nov 3$20.90, Oct 27 - Nov 7$1.98, Nov 7 2:57 pm$0.01, May 3 - Apr 25$20.69, Nov 10 - Nov 13$2.00, Nov 10 8:07 pm$0.01, May 3 - Apr 25$20.69, Nov 10 - Nov 13$1.98, Nov 13 9:18 pm$0.01, May 3 - Apr 25$20.48, Nov 16 - Nov 21$1.96, Nov 16 10:11 am$0.01, May 3 - Apr 25$20.48, Nov 16 - Nov 21$1.94, Nov 20 - Nov 21$0.01, May 3 - Apr 25$20.27, Nov 22 - Nov 29$1.93, Nov 22 - Nov 23$0.01, May 3 - Apr 25$20.27, Nov 22 - Nov 29$1.91, Nov 24 10:17 pm$0.01, May 3 - Apr 25$20.27, Nov 22 - Nov 29$1.87, Nov 26 - Nov 29$0.01, May 3 - Apr 25$20.06, Nov 30 - Dec 7$1.86, Nov 30 12:32 am$0.01, May 3 - Apr 25$20.06, Nov 30 - Dec 7$1.83, Dec 3 - Dec 4$0.01, May 3 - Apr 25$20.06, Nov 30 - Dec 7$1.81, Dec 5 - Dec 6$0.01, May 3 - Apr 25$20.06, Nov 30 - Dec 7$1.80, Dec 7 2:12 am$0.01, May 3 - Apr 25$20.26, Dec 9 - Dec 13$1.75, Dec 9 3:36 am$0.01, May 3 - Apr 25$20.26, Dec 9 - Dec 13$1.74, Dec 11 7:16 am$0.01, May 3 - Apr 25$20.46, Dec 15 - Dec 17$1.71, Dec 15 5:12 am$0.01, May 3 - Apr 25$20.46, Dec 15 - Dec 17$1.70, Dec 17 4:38 am$0.01, May 3 - Apr 25$20.66, Dec 21 11:50 pm$1.68, Dec 21 11:50 pm$0.01, May 3 - Apr 25$20.33, Jan 11 - Jan 18$2.84, Jan 11 - Jan 16$0.01, May 3 - Apr 25$20.33, Jan 11 - Jan 18$2.85, Jan 18 12:25 pm$0.01, May 3 - Apr 25$20.22, Jan 19 - Jan 26$2.98, Jan 19 - Jan 21$0.01, May 3 - Apr 25$20.22, Jan 19 - Jan 26$2.75, Jan 21 - Jan 25$0.01, May 3 - Apr 25$20.22, Jan 19 - Jan 26$2.74, Jan 26 - Jan 27$0.01, May 3 - Apr 25$20.11, Jan 26 - Feb 1$2.75, Jan 28 - Feb 3$0.01, May 3 - Apr 25$19.90, Feb 2 - Feb 9$2.75, Jan 28 - Feb 3$0.01, May 3 - Apr 25$19.90, Feb 2 - Feb 9$3.00, Feb 4 2:55 am$0.01, May 3 - Apr 25$19.90, Feb 2 - Feb 9$3.23, Feb 5 8:30 pm$0.01, May 3 - Apr 25$19.90, Feb 2 - Feb 9$3.97, Feb 7 - Feb 28$0.01, May 3 - Apr 25$19.70, Feb 10 - Feb 16$3.97, Feb 7 - Feb 28$0.01, May 3 - Apr 25$19.50, Feb 17 - Feb 22$3.97, Feb 7 - Feb 28$0.01, May 3 - Apr 25$19.30, Feb 24 - Feb 28$3.97, Feb 7 - Feb 28$0.01, May 3 - Apr 25$19.10, Mar 3 - Mar 31$3.50, Mar 3 - Mar 12$0.01, May 3 - Apr 25$19.10, Mar 3 - Mar 31$3.01, Mar 15 - Mar 29$0.01, May 3 - Apr 25$19.10, Mar 3 - Mar 31$2.89, Mar 31 - Apr 7$0.01, May 3 - Apr 25$18.90, Apr 3 - Apr 7$2.89, Mar 31 - Apr 7$0.01, May 3 - Apr 25$18.71, Apr 10 - Apr 14$2.86, Apr 10 - Apr 14$0.01, May 3 - Apr 25$18.52, Apr 17 - Apr 21$2.85, Apr 17 - Apr 18$0.01, May 3 - Apr 25$18.52, Apr 17 - Apr 21$2.99, Apr 21 2:54 am$0.01, May 3 - Apr 25$18.70, Apr 22 - Apr 25$2.99, Apr 23 9:28 pm$0.01, May 3 - Apr 25$18.70, Apr 26 - Apr 28$2.90, Apr 26 11:51 pm$0.01, Apr 26 - Apr 1$18.70, Apr 26 - Apr 28$2.85, Apr 28 12:31 pm$0.01, Apr 26 - Apr 1$18.88, May 1 - May 5$2.83, May 1 7:05 am$0.01, Apr 26 - Apr 1$18.88, May 1 - May 5$2.85, May 2 - May 5$0.01, Apr 26 - Apr 1$19.06, May 6 - May 10$3.00, May 6 - May 26$0.01, Apr 26 - Apr 1$19.25, May 14 - May 17$3.00, May 6 - May 26$0.01, Apr 26 - Apr 1$19.05, May 20 - May 26$3.00, May 6 - May 26$0.01, Apr 26 - Apr 1$19.23, May 31 - Jun 2$3.01, May 31 - Jun 4$0.01, Apr 26 - Apr 1$19.03, Jun 4 - Jun 9$3.01, May 31 - Jun 4$0.01, Apr 26 - Apr 1$19.03, Jun 4 - Jun 9$3.50, Jun 7 - Jun 19$0.01, Apr 26 - Apr 1$18.84, Jun 11 - Jun 17$3.50, Jun 7 - Jun 19$0.01, Apr 26 - Apr 1$18.65, Jun 19 - Jun 24$3.50, Jun 7 - Jun 19$0.01, Apr 26 - Apr 1$18.65, Jun 19 - Jun 24$3.73, Jun 20 11:13 pm$0.01, Apr 26 - Apr 1$18.65, Jun 19 - Jun 24$3.98, Jun 24 - Jun 26$0.01, Apr 26 - Apr 1$18.46, Jun 26 - Jul 2$3.98, Jun 24 - Jun 26$0.01, Apr 26 - Apr 1$18.46, Jun 26 - Jul 2$3.97, Jun 28 - Jul 7$0.01, Apr 26 - Apr 1$18.64, Jul 5 - Jul 10$3.97, Jun 28 - Jul 7$0.01, Apr 26 - Apr 1$18.64, Jul 5 - Jul 10$3.50, Jul 10 - Jul 22$0.01, Apr 26 - Apr 1$18.82, Jul 12 - Jul 16$3.50, Jul 10 - Jul 22$0.01, Apr 26 - Apr 1$19.00, Jul 18 - Jul 22$3.50, Jul 10 - Jul 22$0.01, Apr 26 - Apr 1$18.81, Jul 25 - Aug 2$3.37, Jul 25 8:22 pm$0.01, Apr 26 - Apr 1$18.81, Jul 25 - Aug 2$2.99, Jul 29 11:24 am$0.01, Apr 26 - Apr 1$18.81, Jul 25 - Aug 2$2.89, Aug 2 1:29 am$0.01, Apr 26 - Apr 1$18.24, Aug 5 - Aug 7$2.99, Aug 5 - Aug 22$0.01, Apr 26 - Apr 1$17.69, Aug 9 - Aug 15$2.99, Aug 5 - Aug 22$0.01, Apr 26 - Apr 1$17.15, Aug 17 - Aug 22$2.99, Aug 5 - Aug 22$0.01, Apr 26 - Apr 1$16.63, Aug 24 - Aug 28$3.00, Aug 24 7:12 pm$0.01, Apr 26 - Apr 1$16.63, Aug 24 - Aug 28$2.75, Aug 26 5:27 pm$0.01, Apr 26 - Apr 1$16.13, Aug 30 - Sep 5$2.70, Aug 28 - Sep 3$0.01, Apr 26 - Apr 1$16.13, Aug 30 - Sep 5$2.00, Sep 5 - Sep 22$0.01, Apr 26 - Apr 1$15.64, Sep 9 - Sep 11$2.00, Sep 5 - Sep 22$0.01, Apr 26 - Apr 1$15.60, Sep 15 - Sep 26$2.00, Sep 5 - Sep 22$0.01, Apr 26 - Apr 1$15.60, Sep 15 - Sep 26$1.98, Sep 24 - Sep 26$0.01, Apr 26 - Apr 1$16.11, Sep 28 - Oct 3$1.00, Sep 28 - Oct 31$0.01, Apr 26 - Apr 1$16.46, Oct 7 - Oct 23$1.00, Sep 28 - Oct 31$0.01, Apr 26 - Apr 1OOS $16.46, Oct 27 - Oct 31$1.00, Sep 28 - Oct 31$0.01, Apr 26 - Apr 1$16.62, Nov 4 - Nov 10$2.75, Nov 4 - Nov 18$0.01, Apr 26 - Apr 1$16.78, Nov 12 - Nov 16$2.75, Nov 4 - Nov 18$0.01, Apr 26 - Apr 1$17.43, Nov 18 - Nov 23$2.75, Nov 4 - Nov 18$0.01, Apr 26 - Apr 1$17.43, Nov 18 - Nov 23$2.65, Nov 21 - Nov 27$0.01, Apr 26 - Apr 1$17.60, Nov 27 11:17 pm$2.65, Nov 21 - Nov 27$0.01, Apr 26 - Apr 1$17.77, Nov 30 - Dec 20$2.75, Nov 30 9:01 am$0.01, Apr 26 - Apr 1$17.77, Nov 30 - Dec 20$2.65, Dec 5 - Dec 7$0.01, Apr 26 - Apr 1$17.77, Nov 30 - Dec 20$2.75, Dec 12 - Dec 30$0.01, Apr 26 - Apr 1$17.51, Dec 22 - Dec 28$2.75, Dec 12 - Dec 30$0.01, Apr 26 - Apr 1$17.42, Dec 30 - Jan 4$2.75, Dec 12 - Dec 30$0.01, Apr 26 - Apr 1$17.42, Dec 30 - Jan 4$2.34, Jan 2 3:10 am$0.01, Apr 26 - Apr 1$17.42, Dec 30 - Jan 4$2.15, Jan 4 12:59 pm$0.01, Apr 26 - Apr 1$16.55, Jan 5 - Jan 11$2.00, Jan 7 3:48 am$0.01, Apr 26 - Apr 1$16.55, Jan 5 - Jan 11$2.04, Jan 8 - Jan 9$0.01, Apr 26 - Apr 1$15.76, Jan 12 - Feb 18$2.00, Jan 11 - Jan 12$0.01, Apr 26 - Apr 1$15.76, Jan 12 - Feb 18$1.95, Jan 13 - Jan 15$0.01, Apr 26 - Apr 1$15.76, Jan 12 - Feb 18$1.94, Jan 16 2:48 pm$0.01, Apr 26 - Apr 1$15.76, Jan 12 - Feb 18$1.88, Jan 19 8:12 am$0.01, Apr 26 - Apr 1$15.76, Jan 12 - Feb 18$1.84, Jan 22 2:56 am$0.01, Apr 26 - Apr 1$15.76, Jan 12 - Feb 18$1.79, Jan 24 7:21 pm$0.01, Apr 26 - Apr 1$15.76, Jan 12 - Feb 18$1.95, Jan 26 - Mar 23$0.01, Apr 26 - Apr 1$26.95, Feb 20 - Feb 29$1.95, Jan 26 - Mar 23$0.01, Apr 26 - Apr 1OOS $26.95, Mar 4 10:21 pm$1.95, Jan 26 - Mar 23$0.01, Apr 26 - Apr 1$26.95, Mar 11 7:19 am$1.95, Jan 26 - Mar 23$0.01, Apr 26 - Apr 1$25.60, Mar 14 1:36 pm$1.95, Jan 26 - Mar 23$0.01, Apr 26 - Apr 1$24.31, Mar 20 - Mar 23$1.95, Jan 26 - Mar 23$0.01, Apr 26 - Apr 1$23.09, Mar 26 - Mar 29$1.93, Mar 26 2:43 pm$0.01, Apr 26 - Apr 1$23.09, Mar 26 - Mar 29$1.90, Mar 29 - Apr 1$0.01, Apr 26 - Apr 1$21.93, Apr 1 3:09 pm$1.90, Mar 29 - Apr 1$0.01, Apr 26 - Apr 1 7,857714,983 781,250 625,000 468,750 312,500 156,250 Oct Dec Feb Apr Jun Aug Oct Dec Feb Apr Jun 2015 2016

Price Details

New

Latest $21.93 Apr 1, '16
Highest $26.95 Mar 11, '16
Lowest $15.60 Sep 15, '15
Average $25.23 (30d avg)
$20.42 (90d avg)
$18.78 (180d avg)
$18.40 (365d avg)
$20.59 (Lifetime average)
Added Sep 10, 2013

3rd Party New

Latest $1.90 Apr 1, '16
Highest $3.99 Jun 22, '15
Lowest $0.01 Oct 27, '14
Average $1.94 (30d avg)
$1.95 (90d avg)
$2.05 (180d avg)
$2.51 (365d avg)
$2.53 (Lifetime average)
Added Sep 10, 2013

3rd Party Used

Latest $0.01 Apr 1, '16
Highest $0.01 Apr 26, '15
Lowest $0.01 Apr 26, '15
Average $0.01 (30d avg)
$0.01 (90d avg)
$0.01 (180d avg)
$0.01 (365d avg)
$0.01 (Lifetime average)
Added Sep 10, 2013

Sales Rank

30 day average: 190,319
90 day average: 207,886

Product Description

Discover how a carefully structured combination of two approaches--sustained silent reading and instruction in subject-specific vocabulary--can help rescue low achievers and boost the academic performance of all students.

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