diff --git a/samples/README.md b/samples/README.md
index 5f2ac1bb7c3e4a6bf6f08d1a7d7c387c89e8241f..4e0a8bf43eeef3fda497af8806eace54b0a933b4 100644
--- a/samples/README.md
+++ b/samples/README.md
@@ -20,7 +20,7 @@ There are many libraries that are important beyond GPIO, I2C and related fundame
 
 The samples expect the device pins to be connected in particular way to function, typically on a breadboard. Each example includes a [Fritzing](http://fritzing.org/home/) diagram of the required breadboard layout, such as the following one (taken from the [More blinking lights](led-more-blinking-lights/README.md) sample).
 
-![Rasperry Pi Breadboard diagram](led-more-blinking-lights/rpi-more-blinking-lights_bb.png)
+![Raspberry Pi Breadboard diagram](led-more-blinking-lights/rpi-more-blinking-lights_bb.png)
 
 ## Requirements
 
diff --git a/samples/led-blink/README.md b/samples/led-blink/README.md
index 34f30b6360941ee69e811f27ca9daa56e5013809..b0bf35126ffaf0649cfecbaaede8a82db79e42d5 100644
--- a/samples/led-blink/README.md
+++ b/samples/led-blink/README.md
@@ -51,7 +51,7 @@ while (true)
 
 The following [fritzing diagram](rpi-led.fzz) demonstrates how you should wire your device in order to run the [program](Program.cs). It uses the GND and GPIO 17 pins on the Raspberry Pi.
 
-![Rasperry Pi Breadboard diagram](rpi-led_bb.png)
+![Raspberry Pi Breadboard diagram](rpi-led_bb.png)
 
 ## Hardware elements
 
diff --git a/samples/led-more-blinking-lights/README.md b/samples/led-more-blinking-lights/README.md
index c13aec80806ed580c2df8707a02ca0f5e43a73d9..1b4910900d9c481aa6aa9f442d82b1267319b1a2 100644
--- a/samples/led-more-blinking-lights/README.md
+++ b/samples/led-more-blinking-lights/README.md
@@ -13,7 +13,7 @@ This sample demonstrates how to use five different elements together, three LEDs
 
 The following [fritzing diagram](rpi-more-blinking-lights.fzz) demonstrates how you should wire your device in order to run the [program](Program.cs). It uses several pins on the Raspberry Pi.
 
-![Rasperry Pi Breadboard diagram](rpi-more-blinking-lights_bb.png)
+![Raspberry Pi Breadboard diagram](rpi-more-blinking-lights_bb.png)
 
 ## Hardware elements
 
diff --git a/src/devices/Mcp3008/README.md b/src/devices/Mcp3008/README.md
index b696ecad5829a4287d72d2aec616bdbc041b9c0e..f8aafd12132c79b5fbcb1ed22c1ddaba7c3e3cee 100644
--- a/src/devices/Mcp3008/README.md
+++ b/src/devices/Mcp3008/README.md
@@ -1,6 +1,6 @@
 # Using MCP3008 (10-bit Analog to Digital Converter)
 
-Some devices like the Rasperry Pi cannot read analog values directly so rely on  [analog to digital converters](https://en.wikipedia.org/wiki/Analog-to-digital_converter), like the [MCP3008 ADC](https://www.adafruit.com/product/856). The MCP3008 supports the SPI interface. The 10-bit chip can be accessed as an [SPI device](https://en.wikipedia.org/wiki/Serial_Peripheral_Interface) or manually via raw GPIO pins.
+Some devices like the Raspberry Pi cannot read analog values directly so rely on  [analog to digital converters](https://en.wikipedia.org/wiki/Analog-to-digital_converter), like the [MCP3008 ADC](https://www.adafruit.com/product/856). The MCP3008 supports the SPI interface. The 10-bit chip can be accessed as an [SPI device](https://en.wikipedia.org/wiki/Serial_Peripheral_Interface) or manually via raw GPIO pins.
 
  You can use [Mcp3008.cs](Mcp3008.cs) in your project to access analog devices. [Reading Analog Input from a Potentiometer](samples/README.md) demonstrates a concrete example using this class.
 
diff --git a/src/devices/Mcp3008/samples/README.md b/src/devices/Mcp3008/samples/README.md
index 023dc765fcddbbba8802d2ae257b4ae055fc0ae0..60f093583a30415f03f4eebeeb2d865242b3d258 100644
--- a/src/devices/Mcp3008/samples/README.md
+++ b/src/devices/Mcp3008/samples/README.md
@@ -2,7 +2,7 @@
 
 You can use .NET Core to read analog values from a [potentiometer](https://en.wikipedia.org/wiki/Trimmer_(electronics)), like a [volume control](https://www.adafruit.com/product/356).
 
-The Rasperry Pi cannot read analog values directly so relies on an analog to digital converter, like the [MCP3008 ADC](https://www.adafruit.com/product/856). The MCP3008 supports the SPI interface. The 10-bit chip can be accessed as an SPI device or manually via raw GPIO pins. Both options are demonstrated.
+The Raspberry Pi cannot read analog values directly so relies on an analog to digital converter, like the [MCP3008 ADC](https://www.adafruit.com/product/856). The MCP3008 supports the SPI interface. The 10-bit chip can be accessed as an SPI device or manually via raw GPIO pins. Both options are demonstrated.
 
 ## Accessing the MCP3008 via SPI