diff --git a/docs/docs/tutorials/summarization.ipynb b/docs/docs/tutorials/summarization.ipynb
index d907ee805e1..36375989b2b 100644
--- a/docs/docs/tutorials/summarization.ipynb
+++ b/docs/docs/tutorials/summarization.ipynb
@@ -130,7 +130,7 @@
     "\n",
     "2. `Map-reduce`: Summarize each document on its own in a \"map\" step and then \"reduce\" the summaries into a final summary (see [here](https://python.langchain.com/v0.2/api_reference/langchain/chains/langchain.chains.combine_documents.map_reduce.MapReduceDocumentsChain.html) for more on the `MapReduceDocumentsChain`, which is used for this method).\n",
     "\n",
-    "Note that map-reduce is especially effective when understanding of a sub-document does not rely on preceeding context. For example, when summarizing a corpus of many, shorter documents. In other cases, such as summarizing a novel or body of text with an inherent sequence, [iterative refinement](/docs/how_to/summarize_refine) may be more effective."
+    "Note that map-reduce is especially effective when understanding of a sub-document does not rely on preceding context. For example, when summarizing a corpus of many, shorter documents. In other cases, such as summarizing a novel or body of text with an inherent sequence, [iterative refinement](/docs/how_to/summarize_refine) may be more effective."
    ]
   },
   {
@@ -346,7 +346,7 @@
     "\n",
     "Note that the map step is typically parallelized over the input documents.\n",
     "\n",
-    "[LangGraph](https://langchain-ai.github.io/langgraph/), built on top of `langchain-core`, suports [map-reduce](https://langchain-ai.github.io/langgraph/how-tos/map-reduce/) workflows and is well-suited to this problem:\n",
+    "[LangGraph](https://langchain-ai.github.io/langgraph/), built on top of `langchain-core`, supports [map-reduce](https://langchain-ai.github.io/langgraph/how-tos/map-reduce/) workflows and is well-suited to this problem:\n",
     "\n",
     "- LangGraph allows for individual steps (such as successive summarizations) to be streamed, allowing for greater control of execution;\n",
     "- LangGraph's [checkpointing](https://langchain-ai.github.io/langgraph/how-tos/persistence/) supports error recovery, extending with human-in-the-loop workflows, and easier incorporation into conversational applications.\n",