#1-5.1%
Reference MaterialsDictionaries and Encyclopedias
166M
#2-2.9%
Reference MaterialsDictionaries and Encyclopedias
33M
#3-5.8%
Education
23M
#43.8%
Education
19M
#53.8%
Business
18M
#6-0.3%
Education
14M
#7-13.9%
Education
13M
#83.3%
Education
12M
#93.9%
Education
10M
#10-1.3%
Education
10M
#11-5.7%
Education
10M
#12-4.0%
Education
9M
#134.2%
Hobbies and LeisureAncestry and Genealogy
9M
#14-4.9%
Tech
9M
#15-6.6%
Education
8M
#1664.3%
Tech
8M
#17-3.2%
Tech
8M
#181.2%
Education
7M
#19-4.6%
Tech
7M
#20-11.4%
Education
7M
#212.1%
Tech
6M
#2220.3%
Education
6M
#23-9.5%
Reference MaterialsReference Materials
6M
#24-2.3%
Tech
5M
#25-8.1%
Education
5M
#26-15.5%
Education
5M
#27-16.3%
Education
5M
#2816.0%
Education
5M
#290.8%
Tech
4M
#30-19.3%
Education
4M
#31-13.7%
Education
3M
#32-9.1%
Education
3M
#331.2%
Education
3M
#34-4.5%
Education
3M
#35-13.0%
News and Media
3M
#36-6.6%
Education
3M
#37-1.6%
Education
3M
#381.4%
Education
2M
#39-10.2%
Tech
2M
#40-4.2%
Health
2M
#4129.4%
Education
2M
#42-3.3%
Tech
2M
#430.4%
Education
2M
#446.2%
Law and GovernmentGovernment
2M
#45-0.4%
Education
2M
#46-8.8%
Tech
2M
#47-0.6%
Tech
2M
#48-4.3%
Education
2M
#49-15.5%
Education
2M
#50-3.1%
Tech
2M
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