What is Copyleft: editorial improvements

1 files changed, 16 insertions, 13 deletions

diff --git a/content/learn/copyleft.md b/content/learn/copyleft.md
index b3a85ef..73ded5c 100644
--- a/content/learn/copyleft.md
+++ b/content/learn/copyleft.md
@@ -7,7 +7,7 @@ weight: -8
 encourage the proliferation of free software and protect free software from
 being incorporated into non-free works. This works by giving you not only the
 *right* to share your improvements, but the *obligation* to share your
-improvements, under some conditions. It is very important to understand these
+improvements under some conditions. It is very important to understand these
 obligations when re-using copyleft software in your own work.
 
 {{< tip >}}
@@ -23,31 +23,32 @@ Open Source movement.
 
 Different free software licenses exist along a spectrum from **permissive** to
 **copyleft**, based on the degree to which they emphasize copyleft in their
-license terms. A permissive license will tend to allow generous reuse with
-relatively few and non-onerous obligations, such as simple attribution
-requirements. In contrast, copyleft licenses impose the obligation to share your
-changes and derived works under the same license terms.
+license terms. Permissive licenses tend to allow generous reuse with relatively
+few and non-onerous obligations, such as simple attribution requirements. In
+contrast, copyleft licenses impose the obligation to share your changes and
+derived works under the same license terms.
 
 <img src="/images/licensing-spectrum.svg" alt="various projects and licenses organized along a spectrum" />
 <small>
-  Various software licenses and projects which use them, organized on the
-  copyleft spectrum. Based on graphic by David A Wheeler, CC-BY-SA 3.0.
+  Various software licenses and examples of projects which use them, organized
+  on the copyleft spectrum. Original graphic by David A Wheeler, CC-BY-SA 3.0.
 </small>
 
 ## Why choose a copyleft license?
 
 It is common for permissively-licensed free software to be incorporated into
-non-free works. This work is often leveraged for profit, denying the four
-freedoms to users who receive the non-free work, and making profitable use of
-the software without giving anything back to the free software community.
+non-free works. This is often done in the name of greater profits by denying the
+four freedoms to users who receive the non-free work, making profitable use
+of the software without giving anything back to the free software community.
 
-Copyleft licenses answer some of these problems:
+Copyleft licenses address some of these problems:
 
 1. Copyleft promotes the proliferation of free software and the four freedoms by
    ensuring that work built on top of free software grows and benefits the free
    software ecosystem.
-2. Copyleft ensures that those who improve free software share their changes
-   with the community, so that all users can benefit from their improvements.
+2. Copyleft ensures that those who improve or re-use free software share their
+   changes with the community, so that all users can benefit from their
+   improvements.
 
 Copyleft software can be sold, like all other free software, but requiring that
 commercial improvements remain free ensures the four freedoms are upheld by all
@@ -101,6 +102,8 @@ library itself. If the software uses the GPL or AGPL, you will be more
 constrained in your approach. Read the license terms carefully and consult a
 lawyer if you are unsure how to proceed.
 
+For more details, consult our page on [re-using free software](/learn/participate/derived-works/).
+
 {{< tip >}}
 The [Software Freedom Conservancy][sfc] is an organization which, among other
 activities, pursues legal remedies for copyleft enforcement. To learn more about