KDP categories · Top KDP authors
Instructional (Sailing, Books): Amazon KDP category data
Amazon Books Best Sellers data for Instructional (Sailing, Books), updated Nov 2, 2026: median price $20.78, median 53 reviews, average rating 4.5 and a KDPTop opportunity score of 22/100 (highly competitive).
| Price range (middle 50%) | $14.96 – $29.07 |
|---|---|
| Average rating | 4.5 |
| New releases (90 days) | 5% |
| Books on the list | 100 |
| Store | Books |
What stands out
- Its median reviews are 17% of the parent category Sailing (307), one of the easier corners under it.
- Only 5% of its best sellers are under 90 days old, fewer than in 75% of Books categories: established titles hold the list.
Top 10 Instructional best sellers
-
The Field Guide to Knots: How to Identify, Tie, and Untie Over 80 Essential Knots for Outdoor Pursuits
by Bob Holtzman
- List rank#1
- Price$16.24
- Rating4.6
- Reviews561
-
The Complete Sailing Manual (DK Complete Manuals)
by Steve Sleight
- List rank#2
- Price$22.70
- Rating4.8
- Reviews717
-
How Boat Things Work: An Illustrated Guide
by Charlie WING
- List rank#3
- Price$12.48
- Rating4.5
- Reviews436
-
Bareboat Cruising Made Easy: The Official Manual For The ASA 104 Bareboat Cruising Course
by American Sailing
- List rank#4
- Price$18.29
- Rating3.3
- Reviews3
-
Boatowner's Mechanical and Electrical Manual: How to Maintain, Repair, and Improve Your Boat's Essential Systems
by Nigel Calder
- List rank#5
- Price$66.68
- Rating4.7
- Reviews380
-
Sé el Capitán: Manual Práctico (Spanish Edition)
by James Evenson
- List rank#6
- Price$29.38
- Rating5.0
- Reviews2
-
Boatowners Mechanical and Electrical Manual 4/E
by Nigel Calder
- List rank#7
- Price$45.99
- Rating4.8
- Reviews1,244
-
Sailing Made Easy
by American Sailing
- List rank#8
- Price$29.90
- Rating4.8
- Reviews760
-
Coastal Cruising Made Easy
by American Sailing Association
- List rank#9
- Price$34.90
- Rating4.7
- Reviews307
-
Ultimate Guide to Nautical Knots
by Skyhorse Publishing
- List rank#10
- Price$7.99
- Rating4.6
- Reviews148
FAQ
Is Instructional a good niche for Amazon KDP?
Its KDPTop opportunity score is 22/100, which makes it highly competitive. The median best seller has 53 reviews and sells for $20.78.
How many reviews do you need to rank in Instructional?
The median best seller has 53 reviews, and 61% of them have fewer than 100.
What do Instructional best sellers cost?
The median price is $20.78; half of the best sellers are priced between $14.96 and $29.07.
Can new books break into Instructional?
5% of the current best sellers were released in the last 90 days.
About this data
Data comes from KDPTop's daily crawl of Amazon's public Best Sellers pages; medians use the latest list. The opportunity score (0–100, higher is easier to enter) combines the review barrier, the share of low-review books, list turnover, new-release share and price.