diff --git a/src/ImageSharp/IO/EndianBinaryReader.cs b/src/ImageSharp/IO/EndianBinaryReader.cs
index 0d660c68d..2b2a79c7e 100644
--- a/src/ImageSharp/IO/EndianBinaryReader.cs
+++ b/src/ImageSharp/IO/EndianBinaryReader.cs
@@ -38,6 +38,11 @@ namespace SixLabors.ImageSharp.IO
         /// </summary>
         private bool disposed;
 
+        /// <summary>
+        /// The endianness used to read data
+        /// </summary>
+        private Endianness endianness;
+
         /// <summary>
         /// Initializes a new instance of the <see cref="EndianBinaryReader"/> class.
         /// Equivalent of <see cref="System.IO.BinaryWriter"/>, but with either endianness, depending on
@@ -72,6 +77,7 @@ namespace SixLabors.ImageSharp.IO
             this.BitConverter = EndianBitConverter.GetConverter(endianness);
             this.Encoding = encoding;
             this.decoder = encoding.GetDecoder();
+            this.endianness = endianness;
             this.minBytesPerChar = 1;
 
             if (encoding is UnicodeEncoding)
@@ -141,7 +147,9 @@ namespace SixLabors.ImageSharp.IO
         public bool ReadBoolean()
         {
             this.ReadInternal(this.storageBuffer, 1);
-            return this.BitConverter.ToBoolean(this.storageBuffer, 0);
+
+            return this.storageBuffer[0] != 0;
+
         }
 
         /// <summary>
diff --git a/src/ImageSharp/IO/EndianBitConverter.ToType.cs b/src/ImageSharp/IO/EndianBitConverter.ToType.cs
index 0c0e49911..ee14ef33e 100644
--- a/src/ImageSharp/IO/EndianBitConverter.ToType.cs
+++ b/src/ImageSharp/IO/EndianBitConverter.ToType.cs
@@ -67,18 +67,6 @@ namespace SixLabors.ImageSharp.IO
             return unchecked((ulong)this.ToInt64(value, startIndex));
         }
 
-        /// <summary>
-        /// Returns a Boolean value converted from one byte at a specified position in a byte array.
-        /// </summary>
-        /// <param name="value">An array of bytes.</param>
-        /// <param name="startIndex">The starting position within value.</param>
-        /// <returns>true if the byte at startIndex in value is nonzero; otherwise, false.</returns>
-        public bool ToBoolean(byte[] value, int startIndex)
-        {
-            CheckByteArgument(value, startIndex, 1);
-            return value[startIndex] != 0;
-        }
-
         /// <summary>
         /// Returns a Unicode character converted from two bytes at a specified position in a byte array.
         /// </summary>
diff --git a/tests/ImageSharp.Tests/IO/BigEndianBitConverter.ToTypeTests.cs b/tests/ImageSharp.Tests/IO/BigEndianBitConverter.ToTypeTests.cs
index 19ef24c79..67fb7e2cc 100644
--- a/tests/ImageSharp.Tests/IO/BigEndianBitConverter.ToTypeTests.cs
+++ b/tests/ImageSharp.Tests/IO/BigEndianBitConverter.ToTypeTests.cs
@@ -15,7 +15,6 @@ namespace SixLabors.ImageSharp.Tests.IO
         [Fact]
         public void CopyToWithNullBufferThrowsException()
         {
-            Assert.Throws<ArgumentNullException>(() => EndianBitConverter.BigEndianConverter.ToBoolean(null, 0));
             Assert.Throws<ArgumentNullException>(() => EndianBitConverter.BigEndianConverter.ToInt16(null, 0));
             Assert.Throws<ArgumentNullException>(() => EndianBitConverter.BigEndianConverter.ToUInt16(null, 0));
             Assert.Throws<ArgumentNullException>(() => EndianBitConverter.BigEndianConverter.ToInt32(null, 0));
@@ -27,7 +26,6 @@ namespace SixLabors.ImageSharp.Tests.IO
         [Fact]
         public void CopyToWithIndexTooBigThrowsException()
         {
-            Assert.Throws<ArgumentOutOfRangeException>(() => EndianBitConverter.BigEndianConverter.ToBoolean(new byte[1], 1));
             Assert.Throws<ArgumentOutOfRangeException>(() => EndianBitConverter.BigEndianConverter.ToInt16(new byte[2], 1));
             Assert.Throws<ArgumentOutOfRangeException>(() => EndianBitConverter.BigEndianConverter.ToUInt16(new byte[2], 1));
             Assert.Throws<ArgumentOutOfRangeException>(() => EndianBitConverter.BigEndianConverter.ToInt32(new byte[4], 1));
@@ -39,7 +37,6 @@ namespace SixLabors.ImageSharp.Tests.IO
         [Fact]
         public void CopyToWithBufferTooSmallThrowsException()
         {
-            Assert.Throws<ArgumentOutOfRangeException>(() => EndianBitConverter.BigEndianConverter.ToBoolean(new byte[0], 0));
             Assert.Throws<ArgumentOutOfRangeException>(() => EndianBitConverter.BigEndianConverter.ToInt16(new byte[1], 0));
             Assert.Throws<ArgumentOutOfRangeException>(() => EndianBitConverter.BigEndianConverter.ToUInt16(new byte[1], 0));
             Assert.Throws<ArgumentOutOfRangeException>(() => EndianBitConverter.BigEndianConverter.ToInt32(new byte[3], 0));
@@ -48,21 +45,6 @@ namespace SixLabors.ImageSharp.Tests.IO
             Assert.Throws<ArgumentOutOfRangeException>(() => EndianBitConverter.BigEndianConverter.ToUInt64(new byte[7], 0));
         }
 
-        /// <summary>
-        /// Tests that passing a <see cref="bool"/> returns the correct bytes.
-        /// </summary>
-        [Fact]
-        public void ToBoolean()
-        {
-            Assert.False(EndianBitConverter.BigEndianConverter.ToBoolean(new byte[] { 0 }, 0));
-            Assert.True(EndianBitConverter.BigEndianConverter.ToBoolean(new byte[] { 1 }, 0));
-            Assert.True(EndianBitConverter.BigEndianConverter.ToBoolean(new byte[] { 42 }, 0));
-
-            Assert.False(EndianBitConverter.BigEndianConverter.ToBoolean(new byte[] { 1, 0 }, 1));
-            Assert.True(EndianBitConverter.BigEndianConverter.ToBoolean(new byte[] { 0, 1 }, 1));
-            Assert.True(EndianBitConverter.BigEndianConverter.ToBoolean(new byte[] { 0, 42 }, 1));
-        }
-
         /// <summary>
         /// Tests that passing a <see cref="short"/> returns the correct bytes.
         /// </summary>
diff --git a/tests/ImageSharp.Tests/IO/LittleEndianBitConverter.ToTypeTests.cs b/tests/ImageSharp.Tests/IO/LittleEndianBitConverter.ToTypeTests.cs
index 0e09d1d07..4c890b367 100644
--- a/tests/ImageSharp.Tests/IO/LittleEndianBitConverter.ToTypeTests.cs
+++ b/tests/ImageSharp.Tests/IO/LittleEndianBitConverter.ToTypeTests.cs
@@ -15,7 +15,6 @@ namespace SixLabors.ImageSharp.Tests.IO
         [Fact]
         public void CopyToWithNullBufferThrowsException()
         {
-            Assert.Throws<ArgumentNullException>(() => EndianBitConverter.LittleEndianConverter.ToBoolean(null, 0));
             Assert.Throws<ArgumentNullException>(() => EndianBitConverter.LittleEndianConverter.ToInt16(null, 0));
             Assert.Throws<ArgumentNullException>(() => EndianBitConverter.LittleEndianConverter.ToUInt16(null, 0));
             Assert.Throws<ArgumentNullException>(() => EndianBitConverter.LittleEndianConverter.ToInt32(null, 0));
@@ -27,7 +26,6 @@ namespace SixLabors.ImageSharp.Tests.IO
         [Fact]
         public void CopyToWithIndexTooBigThrowsException()
         {
-            Assert.Throws<ArgumentOutOfRangeException>(() => EndianBitConverter.LittleEndianConverter.ToBoolean(new byte[1], 1));
             Assert.Throws<ArgumentOutOfRangeException>(() => EndianBitConverter.LittleEndianConverter.ToInt16(new byte[2], 1));
             Assert.Throws<ArgumentOutOfRangeException>(() => EndianBitConverter.LittleEndianConverter.ToUInt16(new byte[2], 1));
             Assert.Throws<ArgumentOutOfRangeException>(() => EndianBitConverter.LittleEndianConverter.ToInt32(new byte[4], 1));
@@ -39,7 +37,6 @@ namespace SixLabors.ImageSharp.Tests.IO
         [Fact]
         public void CopyToWithBufferTooSmallThrowsException()
         {
-            Assert.Throws<ArgumentOutOfRangeException>(() => EndianBitConverter.LittleEndianConverter.ToBoolean(new byte[0], 0));
             Assert.Throws<ArgumentOutOfRangeException>(() => EndianBitConverter.LittleEndianConverter.ToInt16(new byte[1], 0));
             Assert.Throws<ArgumentOutOfRangeException>(() => EndianBitConverter.LittleEndianConverter.ToUInt16(new byte[1], 0));
             Assert.Throws<ArgumentOutOfRangeException>(() => EndianBitConverter.LittleEndianConverter.ToInt32(new byte[3], 0));
@@ -48,19 +45,6 @@ namespace SixLabors.ImageSharp.Tests.IO
             Assert.Throws<ArgumentOutOfRangeException>(() => EndianBitConverter.LittleEndianConverter.ToUInt64(new byte[7], 0));
         }
 
-        /// <summary>
-        /// Tests that passing a <see cref="bool"/> returns the correct bytes.
-        /// </summary>
-        [Fact]
-        public void ToBoolean()
-        {
-            Assert.False(EndianBitConverter.LittleEndianConverter.ToBoolean(new byte[] { 0 }, 0));
-            Assert.True(EndianBitConverter.LittleEndianConverter.ToBoolean(new byte[] { 1 }, 0));
-
-            Assert.False(EndianBitConverter.LittleEndianConverter.ToBoolean(new byte[] { 1, 0 }, 1));
-            Assert.True(EndianBitConverter.LittleEndianConverter.ToBoolean(new byte[] { 0, 1 }, 1));
-        }
-
         /// <summary>
         /// Tests that passing a <see cref="short"/> returns the correct bytes.
         /// </summary>