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$20.98 $0.01
$22.50
$18.00
$13.50
$9.00
$4.50
May
Aug
Nov
Feb
May
Aug
Nov
Feb
May
2014
2015
2016
$15.63, Feb 25 - Apr 12 $18.51, Apr 12 - May 7 $18.51, Apr 12 - May 7 $12.56, May 3 - May 4 $12.00, May 3 - Jun 9 $18.51, Apr 12 - May 7 $12.69, May 5 - May 23 $12.00, May 3 - Jun 9 $18.54, May 8 - May 13 $12.69, May 5 - May 23 $12.00, May 3 - Jun 9 $18.35, May 14 - May 26 $12.69, May 5 - May 23 $12.00, May 3 - Jun 9 $18.35, May 14 - May 26 $12.00, May 3 - Jun 9 $10.95, May 24 - Jul 13 $17.94, May 26 - Jun 4 $12.00, May 3 - Jun 9 $10.95, May 24 - Jul 13 $17.97, Jun 6 - Jun 14 $12.00, May 3 - Jun 9 $10.95, May 24 - Jul 13 $17.97, Jun 6 - Jun 14 $13.81, Jun 9 - Jun 11 $10.95, May 24 - Jul 13 $17.97, Jun 6 - Jun 14 $13.97, Jun 14 2:14 am $10.95, May 24 - Jul 13 $18.01, Jun 15 - Jun 19 $14.00, Jun 14 - Jun 17 $10.95, May 24 - Jul 13 $18.01, Jun 15 - Jun 19 $13.99, Jun 17 8:37 pm $10.95, May 24 - Jul 13 $17.94, Jun 20 - Jul 2 $13.81, Jun 18 - Jun 23 $10.95, May 24 - Jul 13 $17.94, Jun 20 - Jul 2 $13.51, Jun 25 - Jul 14 $10.95, May 24 - Jul 13 $17.75, Jul 3 - Jul 12 $13.51, Jun 25 - Jul 14 $10.95, May 24 - Jul 13 $17.57, Jul 13 - Jul 22 $13.51, Jun 25 - Jul 14 $10.95, May 24 - Jul 13 $17.57, Jul 13 - Jul 22 $13.57, Jul 16 - Jul 22 $9.86, Jul 16 - Jul 17 $17.57, Jul 13 - Jul 22 $13.57, Jul 16 - Jul 22 $9.56, Jul 18 - Jul 20 $17.57, Jul 13 - Jul 22 $13.57, Jul 16 - Jul 22 $9.27, Jul 22 - Jul 24 $17.61, Jul 23 - Jul 31 $13.61, Jul 23 - Jul 31 $9.27, Jul 22 - Jul 24 $17.61, Jul 23 - Jul 31 $13.61, Jul 23 - Jul 31 $8.99, Jul 25 - Jul 27 $17.61, Jul 23 - Jul 31 $13.61, Jul 23 - Jul 31 $8.72, Jul 28 - Jul 30 $17.65, Aug 1 - Aug 17 $13.65, Aug 1 - Aug 17 $8.46, Jul 31 - Aug 2 $17.65, Aug 1 - Aug 17 $13.65, Aug 1 - Aug 17 $8.21, Aug 3 - Aug 5 $17.65, Aug 1 - Aug 17 $13.65, Aug 1 - Aug 17 $7.96, Aug 6 - Aug 8 $17.65, Aug 1 - Aug 17 $13.65, Aug 1 - Aug 17 $7.72, Aug 9 - Aug 12 $17.65, Aug 1 - Aug 17 $13.65, Aug 1 - Aug 17 $7.49, Aug 13 - Aug 14 $17.65, Aug 1 - Aug 17 $13.65, Aug 1 - Aug 17 $7.27, Aug 15 - Aug 17 $17.69, Aug 18 - Sep 2 $13.69, Aug 18 - Sep 2 $7.05, Aug 18 - Aug 20 $17.69, Aug 18 - Sep 2 $13.69, Aug 18 - Sep 2 $6.84, Aug 21 - Aug 23 $17.69, Aug 18 - Sep 2 $13.69, Aug 18 - Sep 2 $6.63, Aug 24 - Aug 26 $17.69, Aug 18 - Sep 2 $13.69, Aug 18 - Sep 2 $6.43, Aug 28 - Aug 30 $17.69, Aug 18 - Sep 2 $13.69, Aug 18 - Sep 2 $6.05, Aug 31 12:19 pm $17.69, Aug 18 - Sep 2 $13.69, Aug 18 - Sep 2 $8.60, Sep 2 9:03 pm $17.73, Sep 4 - Sep 14 $13.73, Sep 4 - Sep 14 $8.12, Sep 5 6:25 am $17.73, Sep 4 - Sep 14 $13.73, Sep 4 - Sep 14 $7.23, Sep 7 2:49 pm $17.73, Sep 4 - Sep 14 $13.73, Sep 4 - Sep 14 $7.01, Sep 8 9:05 pm $17.73, Sep 4 - Sep 14 $13.73, Sep 4 - Sep 14 $6.80, Sep 10 - Sep 11 $17.73, Sep 4 - Sep 14 $13.73, Sep 4 - Sep 14 $6.60, Sep 12 11:12 am $17.73, Sep 4 - Sep 14 $13.73, Sep 4 - Sep 14 $6.40, Sep 14 9:39 am $17.77, Sep 16 - Sep 24 $13.77, Sep 16 - Sep 24 $9.37, Sep 16 10:02 am $17.77, Sep 16 - Sep 24 $13.77, Sep 16 - Sep 24 $12.60, Sep 18 12:03 pm $17.77, Sep 16 - Sep 24 $13.77, Sep 16 - Sep 24 $12.50, Sep 20 12:58 pm $17.77, Sep 16 - Sep 24 $13.77, Sep 16 - Sep 24 $11.92, Sep 22 7:25 pm $17.77, Sep 16 - Sep 24 $13.77, Sep 16 - Sep 24 $11.42, Sep 24 11:49 pm $17.90, Sep 27 - Oct 3 $13.81, Sep 27 4:52 am $11.04, Sep 27 4:52 am $17.90, Sep 27 - Oct 3 $13.90, Sep 29 - Oct 3 $9.98, Sep 29 6:34 am $17.90, Sep 27 - Oct 3 $13.90, Sep 29 - Oct 3 $9.10, Oct 1 9:08 am $17.90, Sep 27 - Oct 3 $13.90, Sep 29 - Oct 3 $10.74, Oct 3 11:55 am $17.81, Oct 5 - Oct 13 $13.81, Oct 5 - Oct 13 $10.70, Oct 5 1:10 pm $17.81, Oct 5 - Oct 13 $13.81, Oct 5 - Oct 13 $10.24, Oct 7 3:16 pm $17.81, Oct 5 - Oct 13 $13.81, Oct 5 - Oct 13 $9.49, Oct 9 6:57 pm $17.81, Oct 5 - Oct 13 $13.81, Oct 5 - Oct 13 $9.35, Oct 11 8:59 pm $17.81, Oct 5 - Oct 13 $13.81, Oct 5 - Oct 13 $8.56, Oct 13 11:25 pm $17.72, Oct 16 - Oct 26 $13.72, Oct 16 - Oct 26 $8.09, Oct 16 3:20 am $17.72, Oct 16 - Oct 26 $13.72, Oct 16 - Oct 26 $9.00, Oct 18 7:08 am $17.72, Oct 16 - Oct 26 $13.72, Oct 16 - Oct 26 $8.71, Oct 20 11:41 am $17.72, Oct 16 - Oct 26 $13.72, Oct 16 - Oct 26 $8.37, Oct 23 - Oct 26 $17.63, Oct 31 - Nov 7 $13.63, Oct 31 - Nov 7 $10.99, Oct 31 - Dec 2 $17.54, Nov 11 - Nov 21 $13.54, Nov 11 - Nov 21 $10.99, Oct 31 - Dec 2 $17.45, Nov 23 - Dec 2 $13.45, Nov 23 - Dec 2 $10.99, Oct 31 - Dec 2 $17.36, Dec 4 - Dec 18 $13.36, Dec 4 - Dec 18 $10.98, Dec 4 - Dec 9 $17.36, Dec 4 - Dec 18 $13.36, Dec 4 - Dec 18 $10.95, Dec 10 - Dec 23 $17.94, Dec 22 - Apr 25 $13.81, Dec 22 - Feb 26 $10.95, Dec 10 - Dec 23 $17.94, Dec 22 - Apr 25 $13.81, Dec 22 - Feb 26 $10.98, Dec 24 2:03 pm $17.94, Dec 22 - Apr 25 $13.81, Dec 22 - Feb 26 $10.97, Dec 25 5:27 pm $17.94, Dec 22 - Apr 25 $13.81, Dec 22 - Feb 26 $10.95, Dec 26 7:41 pm $17.94, Dec 22 - Apr 25 $13.81, Dec 22 - Feb 26 $10.86, Dec 30 8:38 am $17.94, Dec 22 - Apr 25 $13.81, Dec 22 - Feb 26 $10.83, Dec 31 9:39 pm $17.94, Dec 22 - Apr 25 $13.81, Dec 22 - Feb 26 $10.99, Jan 2 3:51 pm $17.94, Dec 22 - Apr 25 $13.81, Dec 22 - Feb 26 $10.95, Jan 5 6:10 pm $17.94, Dec 22 - Apr 25 $13.81, Dec 22 - Feb 26 $10.93, Jan 6 9:00 pm $17.94, Dec 22 - Apr 25 $13.81, Dec 22 - Feb 26 $10.92, Jan 8 - Jan 9 $17.94, Dec 22 - Apr 25 $13.81, Dec 22 - Feb 26 $10.87, Jan 11 9:25 am $17.94, Dec 22 - Apr 25 $13.81, Dec 22 - Feb 26 $10.86, Jan 12 5:53 pm $17.94, Dec 22 - Apr 25 $13.81, Dec 22 - Feb 26 $10.99, Jan 16 1:23 am $17.94, Dec 22 - Apr 25 $13.81, Dec 22 - Feb 26 $8.78, Jan 17 - Jan 23 $17.94, Dec 22 - Apr 25 $13.81, Dec 22 - Feb 26 $7.14, Jan 25 - Feb 1 $17.94, Dec 22 - Apr 25 $13.81, Dec 22 - Feb 26 $9.88, Feb 3 4:52 pm $17.94, Dec 22 - Apr 25 $13.81, Dec 22 - Feb 26 $10.22, Feb 7 6:28 am $17.94, Dec 22 - Apr 25 $13.81, Dec 22 - Feb 26 $11.00, Feb 9 - Feb 10 $17.94, Dec 22 - Apr 25 $13.81, Dec 22 - Feb 26 $10.99, Feb 12 4:23 pm $17.94, Dec 22 - Apr 25 $13.81, Dec 22 - Feb 26 $10.85, Feb 15 10:25 am $17.94, Dec 22 - Apr 25 $13.81, Dec 22 - Feb 26 $10.73, Feb 17 10:00 am $17.94, Dec 22 - Apr 25 $13.81, Dec 22 - Feb 26 $10.63, Feb 19 6:53 am $17.94, Dec 22 - Apr 25 $13.81, Dec 22 - Feb 26 $10.53, Feb 21 4:44 am $17.94, Dec 22 - Apr 25 $13.81, Dec 22 - Feb 26 $10.45, Feb 23 1:55 am $17.94, Dec 22 - Apr 25 $13.81, Dec 22 - Feb 26 $10.37, Feb 24 11:30 pm $17.94, Dec 22 - Apr 25 $13.81, Dec 22 - Feb 26 $10.27, Feb 26 9:50 pm $17.94, Dec 22 - Apr 25 $12.89, Feb 28 - Mar 17 $10.15, Mar 1 8:18 pm $17.94, Dec 22 - Apr 25 $12.89, Feb 28 - Mar 17 $10.05, Mar 4 1:44 am $17.94, Dec 22 - Apr 25 $12.89, Feb 28 - Mar 17 $9.95, Mar 6 4:54 am $17.94, Dec 22 - Apr 25 $12.89, Feb 28 - Mar 17 $9.87, Mar 8 5:22 am $17.94, Dec 22 - Apr 25 $12.89, Feb 28 - Mar 17 $9.77, Mar 10 10:48 am $17.94, Dec 22 - Apr 25 $12.89, Feb 28 - Mar 17 $9.67, Mar 12 5:35 pm $17.94, Dec 22 - Apr 25 $12.89, Feb 28 - Mar 17 $10.95, Mar 15 2:13 am $17.94, Dec 22 - Apr 25 $12.89, Feb 28 - Mar 17 $10.85, Mar 17 3:16 pm $17.94, Dec 22 - Apr 25 $12.88, Mar 20 - Mar 22 $10.73, Mar 20 12:04 am $17.94, Dec 22 - Apr 25 $12.88, Mar 20 - Mar 22 $10.55, Mar 22 7:00 am $17.94, Dec 22 - Apr 25 $12.89, Mar 24 - Apr 25 $10.29, Mar 25 7:52 pm $17.94, Dec 22 - Apr 25 $12.89, Mar 24 - Apr 25 $10.11, Mar 28 3:15 am $17.94, Dec 22 - Apr 25 $12.89, Mar 24 - Apr 25 $9.91, Mar 30 11:36 am $17.94, Dec 22 - Apr 25 $12.89, Mar 24 - Apr 25 $9.73, Apr 2 12:16 am $17.94, Dec 22 - Apr 25 $12.89, Mar 24 - Apr 25 $9.53, Apr 4 2:43 pm $17.94, Dec 22 - Apr 25 $12.89, Mar 24 - Apr 25 $9.33, Apr 7 5:53 am $17.94, Dec 22 - Apr 25 $12.89, Mar 24 - Apr 25 $9.13, Apr 10 12:29 am $17.94, Dec 22 - Apr 25 $12.89, Mar 24 - Apr 25 $8.93, Apr 12 6:18 pm $17.94, Dec 22 - Apr 25 $12.89, Mar 24 - Apr 25 $10.83, Apr 15 2:58 pm $17.94, Dec 22 - Apr 25 $12.89, Mar 24 - Apr 25 $10.75, Apr 16 11:49 pm $17.94, Dec 22 - Apr 25 $12.89, Mar 24 - Apr 25 $10.53, Apr 19 2:53 pm $17.94, Dec 22 - Apr 25 $12.89, Mar 24 - Apr 25 $7.24, Apr 22 7:02 am $17.94, Dec 22 - Apr 25 $12.89, Mar 24 - Apr 25 $6.70, Apr 25 4:27 am $17.94, Apr 28 - Jun 7 $12.89, Apr 28 - Jun 3 $7.76, Apr 28 5:12 am $17.94, Apr 28 - Jun 7 $12.89, Apr 28 - Jun 3 $7.52, Apr 30 11:52 pm $17.94, Apr 28 - Jun 7 $12.89, Apr 28 - Jun 3 $6.77, May 3 4:00 pm $17.94, Apr 28 - Jun 7 $12.89, Apr 28 - Jun 3 $6.27, May 8 4:37 am $17.94, Apr 28 - Jun 7 $12.89, Apr 28 - Jun 3 $6.99, May 11 - May 13 $17.94, Apr 28 - Jun 7 $12.89, Apr 28 - Jun 3 $6.69, May 16 7:23 pm $17.94, Apr 28 - Jun 7 $12.89, Apr 28 - Jun 3 $6.01, May 21 3:32 am $17.94, Apr 28 - Jun 7 $12.89, Apr 28 - Jun 3 $5.33, May 25 5:08 am $17.94, Apr 28 - Jun 7 $12.89, Apr 28 - Jun 3 $5.09, May 29 4:28 pm $17.94, Apr 28 - Jun 7 $12.89, Apr 28 - Jun 3 $5.03, Jun 3 7:39 am $17.94, Apr 28 - Jun 7 $12.88, Jun 7 - Jun 13 $5.54, Jun 7 - Jul 22 OOS $17.94, Jun 11 4:35 pm $12.88, Jun 7 - Jun 13 $5.54, Jun 7 - Jul 22 $17.94, Jun 13 4:25 pm $12.88, Jun 7 - Jun 13 $5.54, Jun 7 - Jul 22 $18.60, Jun 17 - Jul 1 $12.89, Jun 17 - Jun 21 $5.54, Jun 7 - Jul 22 $18.60, Jun 17 - Jul 1 $12.88, Jun 24 11:09 pm $5.54, Jun 7 - Jul 22 $18.60, Jun 17 - Jul 1 $12.89, Jun 29 - Jul 1 $5.54, Jun 7 - Jul 22 $19.76, Jul 5 - Jul 14 $12.88, Jul 5 - Jul 10 $5.54, Jun 7 - Jul 22 $19.76, Jul 5 - Jul 14 $12.89, Jul 14 - Aug 1 $5.54, Jun 7 - Jul 22 $19.34, Jul 18 10:27 am $12.89, Jul 14 - Aug 1 $5.54, Jun 7 - Jul 22 $18.60, Jul 22 2:38 am $12.89, Jul 14 - Aug 1 $5.54, Jun 7 - Jul 22 $14.82, Jul 25 - Jul 29 $12.89, Jul 14 - Aug 1 $5.52, Jul 25 4:42 pm $14.82, Jul 25 - Jul 29 $12.89, Jul 14 - Aug 1 $5.45, Jul 29 6:34 am $14.17, Aug 1 - Aug 5 $12.89, Jul 14 - Aug 1 $5.37, Aug 1 9:22 pm $14.17, Aug 1 - Aug 5 $12.87, Aug 5 - Sep 20 $4.99, Aug 5 12:22 pm $13.56, Aug 9 - Aug 13 $12.87, Aug 5 - Sep 20 $4.98, Aug 9 6:49 am $13.56, Aug 9 - Aug 13 $12.87, Aug 5 - Sep 20 $4.97, Aug 13 1:23 am $17.94, Aug 16 6:58 pm $12.87, Aug 5 - Sep 20 $4.93, Aug 16 6:58 pm $18.93, Aug 20 1:29 pm $12.87, Aug 5 - Sep 20 $4.91, Aug 20 1:29 pm $17.82, Aug 24 - Aug 31 $12.87, Aug 5 - Sep 20 $4.88, Aug 24 6:49 am $17.82, Aug 24 - Aug 31 $12.87, Aug 5 - Sep 20 $4.86, Aug 28 1:53 am $17.82, Aug 24 - Aug 31 $12.87, Aug 5 - Sep 20 $4.83, Aug 31 6:41 pm $18.24, Sep 4 - Oct 20 $12.87, Aug 5 - Sep 20 $4.86, Sep 4 3:19 pm $18.24, Sep 4 - Oct 20 $12.87, Aug 5 - Sep 20 $4.84, Sep 8 1:12 pm $18.24, Sep 4 - Oct 20 $12.87, Aug 5 - Sep 20 $4.90, Sep 12 - Sep 20 $18.24, Sep 4 - Oct 20 $12.88, Sep 24 2:55 am $4.76, Sep 24 2:55 am $18.24, Sep 4 - Oct 20 $12.84, Sep 28 12:01 am $4.54, Sep 28 12:01 am $18.24, Sep 4 - Oct 20 $12.82, Oct 2 1:01 am $4.32, Oct 2 1:01 am $18.24, Sep 4 - Oct 20 $12.80, Oct 6 3:43 am $4.07, Oct 6 3:43 am $18.24, Sep 4 - Oct 20 $12.78, Oct 10 7:27 am $3.81, Oct 10 7:27 am $18.24, Sep 4 - Oct 20 $12.72, Oct 14 7:05 am $3.44, Oct 14 7:05 am $18.24, Sep 4 - Oct 20 $12.70, Oct 18 - Oct 20 $3.19, Oct 18 3:36 am $18.24, Sep 4 - Oct 20 $12.70, Oct 18 - Oct 20 $3.06, Oct 20 2:56 am $17.94, Oct 24 - Nov 21 $12.66, Oct 24 12:10 am $2.81, Oct 24 12:10 am $17.94, Oct 24 - Nov 21 $12.59, Oct 27 10:02 pm $2.55, Oct 27 10:02 pm $17.94, Oct 24 - Nov 21 $12.56, Oct 31 10:02 pm $2.24, Oct 31 10:02 pm $17.94, Oct 24 - Nov 21 $12.88, Nov 4 10:21 pm $1.91, Nov 4 10:21 pm $17.94, Oct 24 - Nov 21 $12.55, Nov 9 - Feb 19 $1.22, Nov 9 12:51 am $17.94, Oct 24 - Nov 21 $12.55, Nov 9 - Feb 19 $0.34, Nov 13 3:35 am $17.94, Oct 24 - Nov 21 $12.55, Nov 9 - Feb 19 $0.01, Nov 17 - Dec 11 $18.60, Nov 26 - Dec 11 $12.55, Nov 9 - Feb 19 $0.01, Nov 17 - Dec 11 $19.28, Dec 16 - Dec 31 $12.55, Nov 9 - Feb 19 $0.24, Dec 16 3:12 am $19.28, Dec 16 - Dec 31 $12.55, Nov 9 - Feb 19 $0.05, Dec 21 1:25 am $19.28, Dec 16 - Dec 31 $12.55, Nov 9 - Feb 19 $0.01, Dec 26 - Feb 27 $19.98, Jan 5 - Jan 19 $12.55, Nov 9 - Feb 19 $0.01, Dec 26 - Feb 27 $20.47, Jan 24 - Feb 3 $12.55, Nov 9 - Feb 19 $0.01, Dec 26 - Feb 27 $20.98, Feb 9 - Feb 14 $12.55, Nov 9 - Feb 19 $0.01, Dec 26 - Feb 27 $19.07, Feb 19 - Mar 11 $12.55, Nov 9 - Feb 19 $0.01, Dec 26 - Feb 27 $19.07, Feb 19 - Mar 11 $12.54, Feb 25 3:53 am $0.01, Dec 26 - Feb 27 $19.07, Feb 19 - Mar 11 $12.51, Feb 27 9:07 pm $0.01, Dec 26 - Feb 27 $19.07, Feb 19 - Mar 11 $12.44, Mar 11 - Apr 9 $0.28, Mar 11 8:20 am $18.84, Mar 23 - Mar 29 $12.44, Mar 11 - Apr 9 $0.18, Mar 23 4:10 am $18.84, Mar 23 - Mar 29 $12.44, Mar 11 - Apr 9 $0.17, Mar 29 1:11 am $18.99, Apr 9 10:41 am $12.44, Mar 11 - Apr 9 $0.01, Apr 9 10:41 am
83,203 1,243,572
1,562,500
1,041,667
520,833
Oct
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Feb
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2015
2016
Price Details
New
Latest
$18.99 22 hrs ago
Highest
$20.98 Feb 9, '16
Lowest
$13.56 Aug 9, '15
Average
$18.94 (30d avg) $19.63 (90d avg) $19.09 (180d avg) $18.43 (365d avg) $18.00 (Lifetime average)
Added
Feb 25, 2014
3rd Party New
Latest
$12.44 22 hrs ago
Highest
$14.00 Jun 14, '14
Lowest
$12.00 May 3, '14
Average
$12.44 (30d avg) $12.51 (90d avg) $12.55 (180d avg) $12.72 (365d avg) $13.05 (Lifetime average)
Added
Feb 25, 2014
3rd Party Used
Latest
$0.01 22 hrs ago
Highest
$12.69 May 5, '14
Lowest
$0.01 22 hrs ago
Average
$0.22 (30d avg) $0.08 (90d avg) $0.48 (180d avg) $3.12 (365d avg) $6.49 (Lifetime average)
Added
Feb 25, 2014
Sales Rank
30 day average: 642,282 90 day average: 856,283
Product Description
Even though Karen Purcell excelled in math and science in high school, nobody ever talked to her about a career in the STEM fields. Finally, in her senior year, when she was frantically trying to decide on a college and course of study, her physics teacher commented that she should consider engineering. Lack of exposure was the first hurdle that Karen would face on her path to success as an engineer and entrepreneur, but it certainly wouldn t be the last. Tackling an important social issue from a personal perspective, Karen describes the trajectory of her own career in engineering, including the struggles she endured. Through her story and stories from women in other fields, she explores the hurdles women in the male-dominated STEM world must overcome and offers pragmatic strategies for moving beyond them. From gaining exposure to occupations early in life to earning the respect of male colleagues to balancing a personal life with career pressures, Karen will empower you to realize your full talents. Part inspiration, part strategic career advice, can help you pursue your passions and leverage your talents to create the professional and personal life you want.
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