Books zpd level searching

Keyword Analysis

Keyword	CPC	PCC	Volume	Score	Length of keyword
books zpd level	`0.28`	`0.8`	`1571`	42	16
books	`0.99`	`0.4`	`9044`	37	5
zpd	`0.93`	`0.9`	`4432`	53	3
level	`0.01`	`0.7`	`3518`	29	5

Keyword	CPC	PCC	Volume	Score
books zpd level	1.51	0.4	7184	10