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Keepa. Com 
Website Provides Detailed Sales History for Millions of Amazon Products Also Can Be Used as a Chrome Extension‘Free Version’ and Premium Version
Why Does That Matter to You?
“What Do I Sell on Amazon?”
I Get Asked this a TON
This Question Prevents More People from Starting than Any Other
So How do the “Pros” Know?
Most Use Keepa
Don’t Be Intimidated!!!
I Know, It Looks Like a Lot...
This Scares Most Others Off
But Not You! Not After Today!
Lets Break it Down
“The Legend” Toggle On/Off Whatever You Want to Compare Amazon is the Orange Bar The Blue Line is the “New” Price The Colored Dots in the Graph Will Match What You Select Amazon/New/Used(Condition) Would be Good if Selling Used Items
Y-Axis (Left, Vertical) Price History $0-$50 (in this example) Increments of $10 (this example)
Y-Axis (Right, Vertical)’Sales Rank’ or ‘Best Seller Rank’ BSR is an Amazon Metric Categories are Ranked First to Last Based on Sale Frequency A Low Number is Good The Green Line is ‘Sales Rank’ Valleys Good, Peaks Bad Not Shown on ‘Free’ Keepa 
X-Axis (Bottom, Horiztonal) Date Range Also, Under the Legend You Can Select How Far Back to TrackMore Recent? (Day, Week, Month)Need Long Term? (Up to All-Time)
Number of Other Sellers Blue Line (similar to sales rank) Located in Graph Directly Under Price History Graph Line Goes Up = More Sellers Line Goes Down = Fewer Sellers Fewer Sellers Means You Have More Control of the Market
The Point of Your Mouse To See An Exact Date? Scroll Your Mouse Over the Chart and See Exactly What Happened that Day Date, Sales Rank, New Price, Whatever Else You Have Selected Under “Legend”
What’s it All Mean?!?! Well, a Lot! By Having a Complete Sales History... You See How Consistently Something Sells and at What Price Most Importantly, for Resellers, You See What Happens When Amazon Runs Out of Stock... 
For Example... We See Here that Amazon (Orange Bar) Was Out of Stock from Late June to Late SeptemberSales Slow Down (green line 
) But ‘New’ Price Went Up Too! Amazon Came Back in Stock Around October and the Price Came Down While Sales Increased
Spotting Trends Knowing What Happens When Amazon is In or Out of Stock is Just One Aspect Time of Year for Toys (Q4) or Books (Semester Starts) Can DRASTICALLY Effect Pricing Want to See What Happens When Comparable LEGO Sets Retire? ... SO Much More!
Hungry for More?
@toyfolio Has a GREAT Book that Breaks Down Keepa Charts
He Discusses How He Has Used Keepa Charts to Make Millions in the Toy Reselling Category
Not an Affiliate, Just a Fan
It’s Worth Your $10
YOUR ASSIGNMENT 
Head Over to Keepa Plug in Some Items and Study Notice Any Trends? Was this Helpful? 
If So, Feel Free to SHARE! 
Have an Excellent Day -Dr. Flip
