diff --git a/README.md b/README.md
index f53a292..2c477eb 100644
--- a/README.md
+++ b/README.md
@@ -2,8 +2,8 @@
 
 [![Dev](https://img.shields.io/badge/docs-dev-blue.svg)](https://juliaconcurrent.github.io/ConcurrentCollections.jl/dev/)
 
-ConcurrentCollections.jl provides the following lock-free collections for Julia
-≥ 1.7:
+ConcurrentCollections.jl provides the following concurrent collections for Julia
+≥ 1.7. Most of their operations are (almost) lock-free whenever appropriate.
 
 * [`DualLinkedConcurrentRingQueue`](https://juliaconcurrent.github.io/ConcurrentCollections.jl/dev/#ConcurrentCollections.DualLinkedConcurrentRingQueue)
 * [`DualLinkedQueue`](https://juliaconcurrent.github.io/ConcurrentCollections.jl/dev/#ConcurrentCollections.DualLinkedQueue)
@@ -12,3 +12,13 @@ ConcurrentCollections.jl provides the following lock-free collections for Julia
 * [`ConcurrentStack`](https://juliaconcurrent.github.io/ConcurrentCollections.jl/dev/#ConcurrentCollections.ConcurrentStack)
 * [`WorkStealingDeque`](https://juliaconcurrent.github.io/ConcurrentCollections.jl/dev/#ConcurrentCollections.WorkStealingDeque)
 * [`ConcurrentDict`](https://juliaconcurrent.github.io/ConcurrentCollections.jl/dev/#ConcurrentCollections.ConcurrentDict)
+
+**NOTE**: If you are trying to find a way to improve performance (especially
+the *throughput*) of your program, it is highly recommended to look for ways to
+**avoid** using concurrent collections first.  In particular, consider applying
+the [data-parallel](https://juliafolds.github.io/data-parallelism/) pattern to
+dodge the difficulties in concurrent programming.  For example, it is often a
+better idea to use task-local copies of **non**-thread-safe `Dict` instead of
+`ConcurrentDict` shared across tasks. For more information, see: [Efficient and
+safe approaches to mutation in data
+parallelism](https://juliafolds.github.io/data-parallelism/tutorials/mutations/).