diff --git a/Adafruit_BusIO_Register.h b/Adafruit_BusIO_Register.h
index 8454b21..3cd7282 100644
--- a/Adafruit_BusIO_Register.h
+++ b/Adafruit_BusIO_Register.h
@@ -79,7 +79,7 @@ private:
   Adafruit_BusIO_SPIRegType _spiregtype;
   uint16_t _address;
   uint8_t _width, _addrwidth, _byteorder;
-  uint8_t _buffer[4]; // we wont support anything larger than uint32 for
+  uint8_t _buffer[4]; // we won't support anything larger than uint32 for
                       // non-buffered read
   uint32_t _cached = 0;
 };
diff --git a/Adafruit_SPIDevice.cpp b/Adafruit_SPIDevice.cpp
index f39627a..830cdcf 100644
--- a/Adafruit_SPIDevice.cpp
+++ b/Adafruit_SPIDevice.cpp
@@ -7,7 +7,7 @@
 //#define DEBUG_SERIAL Serial
 
 /*!
- *    @brief  Create an SPI device with the given CS pin and settins
+ *    @brief  Create an SPI device with the given CS pin and settings
  *    @param  cspin The arduino pin number to use for chip select
  *    @param  freq The SPI clock frequency to use, defaults to 1MHz
  *    @param  dataOrder The SPI data order to use for bits within each byte,
@@ -29,7 +29,7 @@ Adafruit_SPIDevice::Adafruit_SPIDevice(int8_t cspin, uint32_t freq,
 }
 
 /*!
- *    @brief  Create an SPI device with the given CS pin and settins
+ *    @brief  Create an SPI device with the given CS pin and settings
  *    @param  cspin The arduino pin number to use for chip select
  *    @param  sckpin The arduino pin number to use for SCK
  *    @param  misopin The arduino pin number to use for MISO, set to -1 if not
diff --git a/README.md b/README.md
index 3fc8a1f..1cc06a1 100644
--- a/README.md
+++ b/README.md
@@ -1,7 +1,7 @@
 # Adafruit Bus IO Library [![Build Status](https://github.com/adafruit/Adafruit_BusIO/workflows/Arduino%20Library%20CI/badge.svg)](https://github.com/adafruit/Adafruit_BusIO/actions)
 
 
-This is a helper libary to abstract away I2C & SPI transactions and registers
+This is a helper library to abstract away I2C & SPI transactions and registers
 
 Adafruit invests time and resources providing this open source code, please support Adafruit and open-source hardware by purchasing products from Adafruit!
 
diff --git a/examples/spi_register_bits/spi_register_bits.ino b/examples/spi_register_bits/spi_register_bits.ino
index ff21fb7..e70a17b 100644
--- a/examples/spi_register_bits/spi_register_bits.ino
+++ b/examples/spi_register_bits/spi_register_bits.ino
@@ -139,7 +139,7 @@ void setup() {
 
 void loop() {
   #if (defined( MAX31865_READY_PIN ) && (MAX31865_1_READY_PIN != -1))
-    // Is converstion ready?
+    // Is conversion ready?
     if (!digitalRead(MAX31865_READY_PIN))
   #else
     // Warant conversion is ready.