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$229.68 $0.01
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2016
$116.12, May 24 - Jun 25 $6.21, May 25 4:51 am $116.12, May 24 - Jun 25 $6.20, May 26 12:17 pm $116.12, May 24 - Jun 25 $6.18, May 28 10:42 am $116.12, May 24 - Jun 25 $6.16, May 30 10:56 am $116.12, May 24 - Jun 25 $6.15, May 31 2:33 am $116.12, May 24 - Jun 25 $6.13, Jun 2 3:16 am $116.12, May 24 - Jun 25 $6.11, Jun 4 6:08 am $116.12, May 24 - Jun 25 $6.10, Jun 5 10:11 pm $116.12, May 24 - Jun 25 $6.07, Jun 7 - Jun 8 $116.12, May 24 - Jun 25 $6.05, Jun 10 1:38 am $116.12, May 24 - Jun 25 $6.04, Jun 11 11:27 am $116.12, May 24 - Jun 25 $6.02, Jun 13 12:13 am $116.12, May 24 - Jun 25 $6.00, Jun 15 6:36 am $116.12, May 24 - Jun 25 $5.99, Jun 16 12:55 am $116.12, May 24 - Jun 25 $5.96, Jun 19 1:47 am $116.12, May 24 - Jun 25 $5.95, Jun 20 10:57 am $116.12, May 24 - Jun 25 $5.94, Jun 21 5:15 am $116.12, May 24 - Jun 25 $5.91, Jun 24 - Jun 25 $116.12, May 24 - Jun 25 $5.90, Jun 25 7:31 pm $95.16, Jun 27 - Jul 2 $5.86, Jun 27 8:54 am $95.16, Jun 27 - Jul 2 $5.76, Jun 29 4:21 pm $95.16, Jun 27 - Jul 2 $5.73, Jun 30 11:36 am $95.16, Jun 27 - Jul 2 $5.61, Jul 2 7:48 pm $95.14, Jul 4 - Jul 5 $5.56, Jul 4 12:06 am $89.48, Jul 6 2:12 pm $5.43, Jul 6 2:12 pm $79.78, Jul 7 11:59 pm $5.35, Jul 7 11:59 pm $75.64, Jul 9 5:02 am $5.29, Jul 9 5:02 am $79.78, Jul 11 3:57 pm $4.82, Jul 11 3:57 pm $76.18, Jul 12 9:05 pm $4.72, Jul 12 9:05 pm $77.00, Jul 15 11:07 am $4.49, Jul 15 11:07 am $79.76, Jul 16 7:43 pm $4.40, Jul 16 7:43 pm $76.08, Jul 18 5:22 am $4.29, Jul 18 5:22 am $69.14, Jul 20 - Jul 21 $4.09, Jul 20 11:19 am $69.14, Jul 20 - Jul 21 $4.02, Jul 21 9:15 am $63.84, Jul 23 - Jul 24 $3.90, Jul 23 3:41 pm $62.28, Jul 25 - Jul 26 $3.76, Jul 25 2:02 pm $59.66, Jul 27 8:28 am $3.62, Jul 27 8:28 am $57.28, Jul 28 - Jul 29 $3.47, Jul 29 4:43 am $56.45, Jul 30 - Aug 1 $3.28, Jul 30 8:08 pm $56.45, Jul 30 - Aug 1 $3.14, Aug 1 3:25 pm $56.47, Aug 2 - Aug 3 $2.96, Aug 3 10:39 am $93.03, Aug 4 - Aug 5 $2.78, Aug 5 5:31 am $89.07, Aug 6 - Aug 7 $2.56, Aug 7 6:37 am $113.76, Aug 8 - Aug 9 $2.32, Aug 9 6:00 am $93.05, Aug 10 7:33 am $2.21, Aug 10 7:33 am $82.46, Aug 12 - Aug 13 $1.95, Aug 12 4:54 am $77.91, Aug 14 3:24 am $1.72, Aug 14 3:24 am $92.89, Aug 16 1:59 am $1.57, Aug 16 1:59 am $87.84, Aug 18 - Aug 19 $1.40, Aug 18 4:05 am $87.84, Aug 18 - Aug 19 $1.26, Aug 19 8:16 am $87.84, Aug 21 - Aug 22 $1.06, Aug 21 11:10 am $97.84, Aug 23 - Aug 28 $0.89, Aug 23 11:36 am $97.84, Aug 23 - Aug 28 $0.79, Aug 24 1:19 pm $97.84, Aug 23 - Aug 28 $0.74, Aug 26 3:34 pm $97.84, Aug 23 - Aug 28 $0.72, Aug 28 7:30 pm $102.82, Aug 29 10:46 pm $0.70, Aug 29 10:46 pm $97.51, Sep 1 - Sep 2 $0.66, Sep 1 6:58 am $97.51, Sep 1 - Sep 2 $0.64, Sep 2 11:39 am $87.84, Sep 4 - Sep 6 $0.60, Sep 4 9:12 pm $87.84, Sep 4 - Sep 6 $0.58, Sep 6 12:03 am $87.84, Sep 8 9:12 am $0.53, Sep 8 9:12 am $83.99, Sep 9 2:30 pm $0.50, Sep 9 2:30 pm $83.18, Sep 10 - Sep 11 $0.47, Sep 10 - Sep 22 $82.94, Sep 13 3:37 am $0.47, Sep 10 - Sep 22 $82.36, Sep 15 3:37 am $0.47, Sep 10 - Sep 22 $87.84, Sep 19 - Sep 24 $0.47, Sep 10 - Sep 22 $87.84, Sep 19 - Sep 24 $0.46, Sep 24 - Oct 15 $83.33, Sep 26 6:05 am $0.46, Sep 24 - Oct 15 $84.24, Sep 28 6:37 am $0.46, Sep 24 - Oct 15 $87.84, Sep 30 6:47 am $0.46, Sep 24 - Oct 15 $84.24, Oct 2 9:30 am $0.46, Sep 24 - Oct 15 $83.83, Oct 4 11:06 am $0.46, Sep 24 - Oct 15 $75.26, Oct 6 12:48 pm $0.46, Sep 24 - Oct 15 $71.58, Oct 8 3:20 pm $0.46, Sep 24 - Oct 15 $68.30, Oct 10 7:11 pm $0.46, Sep 24 - Oct 15 $62.68, Oct 12 10:03 pm $0.46, Sep 24 - Oct 15 $60.28, Oct 15 12:31 am $0.46, Sep 24 - Oct 15 $57.88, Oct 17 - Oct 19 $0.47, Oct 17 5:34 am $57.88, Oct 17 - Oct 19 $0.63, Oct 19 9:21 am $56.54, Oct 21 2:09 pm $0.70, Oct 21 2:09 pm $55.34, Oct 23 9:18 pm $0.77, Oct 23 9:18 pm $53.20, Oct 29 6:31 pm $0.78, Oct 29 6:31 pm $51.08, Nov 4 7:12 am $0.74, Nov 4 7:12 am $48.46, Nov 10 10:57 am $0.55, Nov 10 10:57 am $46.90, Nov 15 9:27 pm $0.34, Nov 15 9:27 pm $46.60, Nov 19 12:47 am $0.23, Nov 19 12:47 am $46.30, Nov 21 - Nov 23 $0.14, Nov 21 3:51 am $46.30, Nov 21 - Nov 23 $0.40, Nov 23 4:42 am $46.06, Nov 25 9:24 am $0.48, Nov 25 - Dec 21 $45.50, Nov 27 6:30 am $0.48, Nov 25 - Dec 21 $45.04, Nov 29 4:44 am $0.48, Nov 25 - Dec 21 $44.40, Dec 1 2:37 am $0.48, Nov 25 - Dec 21 $43.96, Dec 3 2:00 am $0.48, Nov 25 - Dec 21 $43.60, Dec 4 11:47 pm $0.48, Nov 25 - Dec 21 $43.18, Dec 6 8:51 pm $0.48, Nov 25 - Dec 21 $55.48, Dec 8 11:23 pm $0.48, Nov 25 - Dec 21 $66.04, Dec 11 - Dec 13 $0.48, Nov 25 - Dec 21 $81.40, Dec 14 11:50 pm $0.48, Nov 25 - Dec 21 $79.78, Dec 16 10:45 pm $0.48, Nov 25 - Dec 21 $78.78, Dec 21 7:24 pm $0.48, Nov 25 - Dec 21 $81.04, Dec 31 - Jan 8 $0.18, Dec 31 2:25 pm $81.04, Dec 31 - Jan 8 $0.10, Jan 2 8:51 am $81.04, Dec 31 - Jan 8 $0.01, Jan 4 - Apr 25 $78.54, Jan 9 7:07 am $0.01, Jan 4 - Apr 25 $72.22, Jan 11 4:51 pm $0.01, Jan 4 - Apr 25 $70.52, Jan 13 2:56 am $0.01, Jan 4 - Apr 25 $67.60, Jan 14 7:33 pm $0.01, Jan 4 - Apr 25 $89.16, Jan 16 9:44 am $0.01, Jan 4 - Apr 25 $81.04, Jan 18 3:30 am $0.01, Jan 4 - Apr 25 $79.32, Jan 19 5:58 pm $0.01, Jan 4 - Apr 25 $74.74, Jan 21 8:24 am $0.01, Jan 4 - Apr 25 $71.02, Jan 22 11:32 pm $0.01, Jan 4 - Apr 25 $68.66, Jan 24 1:55 pm $0.01, Jan 4 - Apr 25 $67.32, Jan 26 6:27 am $0.01, Jan 4 - Apr 25 $63.16, Jan 29 4:50 pm $0.01, Jan 4 - Apr 25 $60.80, Jan 31 11:17 am $0.01, Jan 4 - Apr 25 $58.20, Feb 2 6:33 am $0.01, Jan 4 - Apr 25 $56.10, Feb 4 2:29 am $0.01, Jan 4 - Apr 25 $55.20, Feb 5 8:05 pm $0.01, Jan 4 - Apr 25 $53.68, Feb 7 2:31 pm $0.01, Jan 4 - Apr 25 $52.42, Feb 9 9:55 am $0.01, Jan 4 - Apr 25 $51.40, Feb 11 5:21 am $0.01, Jan 4 - Apr 25 $50.60, Feb 13 12:41 am $0.01, Jan 4 - Apr 25 $49.94, Feb 14 8:26 pm $0.01, Jan 4 - Apr 25 $49.40, Feb 16 7:21 pm $0.01, Jan 4 - Apr 25 $48.98, Feb 18 4:14 pm $0.01, Jan 4 - Apr 25 $48.64, Feb 20 1:39 pm $0.01, Jan 4 - Apr 25 $48.34, Feb 22 12:03 pm $0.01, Jan 4 - Apr 25 $48.10, Feb 24 9:53 am $0.01, Jan 4 - Apr 25 $47.92, Feb 26 7:29 am $0.01, Jan 4 - Apr 25 $47.76, Feb 28 5:25 am $0.01, Jan 4 - Apr 25 $47.64, Mar 2 10:57 pm $0.01, Jan 4 - Apr 25 $47.54, Mar 4 7:40 pm $0.01, Jan 4 - Apr 25 $47.46, Mar 6 6:51 pm $0.01, Jan 4 - Apr 25 $47.36, Mar 8 6:01 pm $0.01, Jan 4 - Apr 25 $61.88, Mar 11 1:47 am $0.01, Jan 4 - Apr 25 $59.08, Mar 13 7:44 am $0.01, Jan 4 - Apr 25 $55.86, Mar 15 2:56 pm $0.01, Jan 4 - Apr 25 $54.20, Mar 18 4:11 am $0.01, Jan 4 - Apr 25 $53.18, Mar 20 11:55 am $0.01, Jan 4 - Apr 25 $52.40, Mar 22 9:36 pm $0.01, Jan 4 - Apr 25 $51.98, Mar 25 4:11 am $0.01, Jan 4 - Apr 25 $51.64, Mar 27 11:15 am $0.01, Jan 4 - Apr 25 $51.38, Mar 29 7:35 pm $0.01, Jan 4 - Apr 25 $51.16, Apr 1 5:26 am $0.01, Jan 4 - Apr 25 $65.38, Apr 3 9:39 pm $0.01, Jan 4 - Apr 25 $118.36, Apr 28 2:22 pm $0.01, Apr 28 - Aug 3 $113.58, May 1 8:46 am $0.01, Apr 28 - Aug 3 $111.18, May 4 - May 10 $0.01, Apr 28 - Aug 3 $45.58, May 14 - May 18 $0.01, Apr 28 - Aug 3 $112.98, May 22 - May 26 $0.01, Apr 28 - Aug 3 $115.24, May 31 4:00 am $0.01, Apr 28 - Aug 3 $229.68, Jun 4 6:00 pm $0.01, Apr 28 - Aug 3 $37.46, Jun 9 2:20 am $0.01, Apr 28 - Aug 3 $108.42, Jun 13 2:41 am $0.01, Apr 28 - Aug 3 $37.12, Jun 16 - Jun 20 $0.01, Apr 28 - Aug 3 $106.14, Jun 24 10:37 am $0.01, Apr 28 - Aug 3 $34.08, Jun 28 1:07 pm $0.01, Apr 28 - Aug 3 $106.14, Jul 2 4:39 pm $0.01, Apr 28 - Aug 3 $105.14, Jul 7 12:23 am $0.01, Apr 28 - Aug 3 $98.02, Jul 12 12:36 pm $0.01, Apr 28 - Aug 3 $91.84, Jul 16 5:08 am $0.01, Apr 28 - Aug 3 $86.14, Jul 19 7:15 pm $0.01, Apr 28 - Aug 3 $97.64, Jul 23 9:16 am $0.01, Apr 28 - Aug 3 $80.42, Jul 26 10:50 pm $0.01, Apr 28 - Aug 3 $80.30, Jul 30 1:05 pm $0.01, Apr 28 - Aug 3 $75.96, Aug 3 3:04 am $0.01, Apr 28 - Aug 3 $105.09, Aug 6 6:51 pm $64.95, Aug 6 - Aug 18 $208.81, Aug 10 2:53 pm $64.95, Aug 6 - Aug 18 $184.42, Aug 14 9:39 am $64.95, Aug 6 - Aug 18 $171.87, Aug 18 3:22 am $64.95, Aug 6 - Aug 18 $166.55, Aug 21 9:44 pm $59.99, Aug 21 - Aug 25 $161.77, Aug 25 3:53 pm $59.99, Aug 21 - Aug 25 $157.41, Aug 29 10:12 am $59.96, Aug 29 10:12 am $153.47, Sep 2 3:27 am $59.95, Sep 2 3:27 am $149.19, Sep 6 12:53 am $54.97, Sep 6 12:53 am $141.58, Sep 9 11:08 pm $27.34, Sep 9 11:08 pm $180.10, Sep 13 7:24 pm $38.65, Sep 13 7:24 pm $213.26, Sep 17 4:21 pm $37.59, Sep 17 4:21 pm $189.78, Sep 21 1:31 pm $36.30, Sep 21 1:31 pm $187.20, Sep 25 12:08 pm $35.15, Sep 25 12:08 pm $184.46, Sep 29 10:00 am $33.79, Sep 29 10:00 am $175.40, Oct 3 11:36 am $32.44, Oct 3 11:36 am $172.62, Oct 7 2:19 pm $30.91, Oct 7 2:19 pm $155.14, Oct 11 4:59 pm $14.61, Oct 11 4:59 pm $126.60, Oct 15 3:30 pm $9.55, Oct 15 3:30 pm $124.62, Oct 19 11:59 am $8.68, Oct 19 11:59 am $125.64, Oct 23 - Oct 27 $6.56, Oct 23 9:13 am $125.64, Oct 23 - Oct 27 $4.25, Oct 27 6:52 am $125.25, Oct 31 6:29 am $3.75, Oct 31 6:29 am $118.55, Nov 4 6:38 am $3.19, Nov 4 6:38 am $116.06, Nov 8 9:24 am $2.35, Nov 8 9:24 am $112.25, Nov 12 12:00 pm $2.16, Nov 12 12:00 pm $105.21, Nov 16 6:19 pm $1.91, Nov 16 6:19 pm $100.74, Nov 21 3:03 am $1.70, Nov 21 3:03 am $94.67, Nov 25 1:09 pm $1.50, Nov 25 1:09 pm $86.73, Nov 30 6:41 am $1.24, Nov 30 6:41 am $83.11, Dec 5 3:55 am $1.07, Dec 5 3:55 am $76.73, Dec 10 6:45 am $0.89, Dec 10 6:45 am $73.68, Dec 15 7:40 am $0.78, Dec 15 7:40 am $78.60, Dec 20 7:41 am $0.67, Dec 20 7:41 am $67.48, Dec 25 - Dec 30 $0.57, Dec 25 2:28 am $67.48, Dec 25 - Dec 30 $0.46, Dec 30 4:10 am $71.90, Jan 3 - Jan 8 $0.37, Jan 3 11:21 pm $71.90, Jan 3 - Jan 8 $0.26, Jan 8 9:34 pm $70.20, Jan 13 - Jan 18 $0.14, Jan 13 7:23 pm $70.20, Jan 13 - Jan 18 $0.02, Jan 18 7:57 pm $74.10, Jan 23 - Feb 8 $0.01, Jan 23 - Mar 26 $69.50, Feb 13 5:47 am $0.01, Jan 23 - Mar 26 $67.76, Feb 18 2:23 pm $0.01, Jan 23 - Mar 26 $74.10, Feb 24 4:24 am $0.01, Jan 23 - Mar 26 $72.18, Mar 2 - Mar 14 $0.01, Jan 23 - Mar 26 $72.17, Mar 26 12:18 pm $0.01, Jan 23 - Mar 26
273,568 3,426,252
2,812,500
2,109,375
1,406,250
703,125
0
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Price Details
3rd Party New
Latest
$72.17 Mar 26, '16
Highest
$229.68 Jun 4, '15
Lowest
$34.08 Jun 28, '15
Average
$72.18 (30d avg) $71.69 (90d avg) $92.96 (180d avg) $102.63 (365d avg) $89.38 (Lifetime average)
Added
May 24, 2014
3rd Party Used
Latest
$0.01 Mar 26, '16
Highest
$64.95 Aug 6, '15
Lowest
$0.01 Jan 23, '16
Average
$0.01 (30d avg) $0.08 (90d avg) $3.75 (180d avg) $9.48 (365d avg) $5.87 (Lifetime average)
Added
May 24, 2014
Sales Rank
30 day average: 3,096,919 90 day average: 3,069,658
Product Description
-- Introduces young children to fundamental aspects of nature, science and technology-- Inspired by the questions children ask about the world around them-- Simple text and detailed illustrations answer questions in clear, step-by-step stages
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