diff --git a/README.md b/README.md
index 1c598c8..2347403 100644
--- a/README.md
+++ b/README.md
@@ -10,6 +10,7 @@ Contents:
 - [Configuration](#configuration): [CMake](#configuration-cmake), [Bazel](#configuration-bazel)
 - [Background](#background): [Theory](#background-theory), [Design](#background-design)
 - [User Guide](#user-guide): [Basics](#user-guide-basics), [Vectors and Tensors](#user-guide-vectors-and-tensors), [Operations](#user-guide-operations), [Units](#user-guide-units), [Unit Systems](#user-guide-unit-systems), [Models](#user-guide-models), [Dimensions](#user-guide-dimensions)
+- [Features](#features): [Physical Quantities](#features-physical-quantities), [Physical Models](#features-physical-models), [Units](#features-units), [Unit Systems](#features-unit-systems)
 - [Developer Guide](#developer-guide): [Documentation](#developer-guide-documentation), [Installation](#developer-guide-installation), [Testing](#developer-guide-testing), [Coverage](#developer-guide-coverage)
 - [License](#license)
 
@@ -559,6 +560,182 @@ The above example obtains the physical dimension set of mass density, which is L
 
 [(Back to User Guide)](#user-guide)
 
+## Features
+
+This section provides an overview of the features of the Physical Quantities library:
+
+- [Physical Quantities](#features-physical-quantities)
+- [Physical Models](#features-physical-models)
+- [Units](#features-units)
+- [Unit Systems](#features-unit-systems)
+
+[(Back to Top)](#physical-quantities)
+
+### Features: Physical Quantities
+
+The Physical Quantities library features the following physical quantities:
+
+- PhQ::Acceleration
+- PhQ::Angle
+- PhQ::AngularSpeed
+- PhQ::Area
+- PhQ::BulkDynamicViscosity
+- PhQ::Direction
+- PhQ::Displacement
+- PhQ::DisplacementGradient
+- PhQ::DynamicKinematicPressure
+- PhQ::DynamicPressure
+- PhQ::DynamicViscosity
+- PhQ::ElectricCharge
+- PhQ::ElectricCurrent
+- PhQ::Energy
+- PhQ::Force
+- PhQ::Frequency
+- PhQ::GasConstant
+- PhQ::HeatCapacityRatio
+- PhQ::HeatFlux
+- PhQ::IsentropicBulkModulus
+- PhQ::IsobaricHeatCapacity
+- PhQ::IsochoricHeatCapacity
+- PhQ::IsothermalBulkModulus
+- PhQ::KinematicViscosity
+- PhQ::LameFirstModulus
+- PhQ::Length
+- PhQ::LinearThermalExpansionCoefficient
+- PhQ::MachNumber
+- PhQ::Mass
+- PhQ::MassDensity
+- PhQ::MassRate
+- PhQ::Memory
+- PhQ::MemoryRate
+- PhQ::PWaveModulus
+- PhQ::PlanarAcceleration
+- PhQ::PlanarDirection
+- PhQ::PlanarDisplacement
+- PhQ::PlanarForce
+- PhQ::PlanarHeatFlux
+- PhQ::PlanarPosition
+- PhQ::PlanarTemperatureGradient
+- PhQ::PlanarTraction
+- PhQ::PlanarVelocity
+- PhQ::PoissonRatio
+- PhQ::Position
+- PhQ::Power
+- PhQ::PrandtlNumber
+- PhQ::ReynoldsNumber
+- PhQ::ScalarAcceleration
+- PhQ::ScalarAngularAcceleration
+- PhQ::ScalarDisplacementGradient
+- PhQ::ScalarForce
+- PhQ::ScalarHeatFlux
+- PhQ::ScalarStrain
+- PhQ::ScalarStrainRate
+- PhQ::ScalarStress
+- PhQ::ScalarTemperatureGradient
+- PhQ::ScalarThermalConductivity
+- PhQ::ScalarTraction
+- PhQ::ScalarVelocityGradient
+- PhQ::ShearModulus
+- PhQ::SolidAngle
+- PhQ::SoundSpeed
+- PhQ::SpecificEnergy
+- PhQ::SpecificGasConstant
+- PhQ::SpecificIsobaricHeatCapacity
+- PhQ::SpecificIsochoricHeatCapacity
+- PhQ::SpecificPower
+- PhQ::Speed
+- PhQ::StaticKinematicPressure
+- PhQ::StaticPressure
+- PhQ::Strain
+- PhQ::StrainRate
+- PhQ::Stress
+- PhQ::SubstanceAmount
+- PhQ::Temperature
+- PhQ::TemperatureDifference
+- PhQ::TemperatureGradient
+- PhQ::ThermalConductivity
+- PhQ::ThermalDiffusivity
+- PhQ::Time
+- PhQ::TotalKinematicPressure
+- PhQ::TotalPressure
+- PhQ::Traction
+- PhQ::TransportEnergyConsumption
+- PhQ::VectorArea
+- PhQ::Velocity
+- PhQ::VelocityGradient
+- PhQ::Volume
+- PhQ::VolumeRate
+- PhQ::VolumetricThermalExpansionCoefficient
+- PhQ::YoungModulus
+
+[(Back to Features)](#features)
+
+### Features: Physical Models
+
+The Physical Quantities library features the following physical models:
+
+- PhQ::ConstitutiveModel
+  - PhQ::ConstitutiveModel::CompressibleNewtonianFluid
+  - PhQ::ConstitutiveModel::ElasticIsotropicSolid
+  - PhQ::ConstitutiveModel::IncompressibleNewtonianFluid
+
+[(Back to Features)](#features)
+
+### Features: Units
+
+The Physical Quantities library features the following units of measure:
+
+- PhQ::Unit::Acceleration
+- PhQ::Unit::Angle
+- PhQ::Unit::AngularAcceleration
+- PhQ::Unit::AngularSpeed
+- PhQ::Unit::Area
+- PhQ::Unit::Diffusivity
+- PhQ::Unit::DynamicViscosity
+- PhQ::Unit::ElectricCharge
+- PhQ::Unit::ElectricCurrent
+- PhQ::Unit::Energy
+- PhQ::Unit::EnergyFlux
+- PhQ::Unit::Force
+- PhQ::Unit::Frequency
+- PhQ::Unit::HeatCapacity
+- PhQ::Unit::Length
+- PhQ::Unit::Mass
+- PhQ::Unit::MassDensity
+- PhQ::Unit::MassRate
+- PhQ::Unit::Memory
+- PhQ::Unit::MemoryRate
+- PhQ::Unit::Power
+- PhQ::Unit::Pressure
+- PhQ::Unit::SolidAngle
+- PhQ::Unit::SpecificEnergy
+- PhQ::Unit::SpecificHeatCapacity
+- PhQ::Unit::SpecificPower
+- PhQ::Unit::Speed
+- PhQ::Unit::SubstanceAmount
+- PhQ::Unit::Temperature
+- PhQ::Unit::TemperatureDifference
+- PhQ::Unit::TemperatureGradient
+- PhQ::Unit::ThermalConductivity
+- PhQ::Unit::ThermalExpansion
+- PhQ::Unit::Time
+- PhQ::Unit::TransportEnergyConsumption
+- PhQ::Unit::Volume
+- PhQ::Unit::VolumeRate
+
+[(Back to Features)](#features)
+
+### Features: Unit Systems
+
+The Physical Quantities library features the following consistent systems of units of measure:
+
+- PhQ::UnitSystem::MetreKilogramSecondKelvin
+- PhQ::UnitSystem::MillimetreGramSecondKelvin
+- PhQ::UnitSystem::FootPoundSecondRankine
+- PhQ::UnitSystem::InchPoundSecondRankine
+
+[(Back to Features)](#features)
+
 ## Developer Guide
 
 This section presents information pertinent to software developers of the Physical Quantities library:
diff --git a/docs/main.txt b/docs/main.txt
index 2c1649d..b85c636 100644
--- a/docs/main.txt
+++ b/docs/main.txt
@@ -8,6 +8,7 @@
 /// - \ref configuration "Configuration": \ref configuration_cmake "CMake", \ref configuration_bazel "Bazel"
 /// - \ref background "Background": \ref background_theory "Theory", \ref background_design "Design"
 /// - \ref user_guide "User Guide": \ref user_guide_basics "Basics", \ref user_guide_vectors_and_tensors "Vectors and Tensors", \ref user_guide_operations "Operations", \ref user_guide_units "Units", \ref user_guide_unit_systems "Unit Systems", \ref user_guide_models "Models", \ref user_guide_dimensions "Dimensions"
+/// - \ref features "Features": \ref features_physical_quantities "Physical Quantities", \ref features_physical_models "Physical Models", \ref features_units "Units", \ref features_unit_systems "Unit Systems"
 /// - \ref developer_guide "Developer Guide": \ref developer_guide_documentation "Documentation", \ref developer_guide_installation "Installation", \ref developer_guide_testing "Testing", \ref developer_guide_coverage "Coverage"
 /// - \ref license "License"
 ///
@@ -561,6 +562,182 @@
 ///
 /// \ref user_guide "(Back to User Guide)"
 ///
+/// \section features Features Guide
+///
+/// This section provides an overview of the features of the Physical Quantities library:
+///
+/// - \ref features_physical_quantities "Physical Quantities"
+/// - \ref features_physical_models "Physical Models"
+/// - \ref features_units "Units"
+/// - \ref features_unit_systems "Unit Systems"
+///
+/// \ref index "(Back to Top)"
+///
+/// \subsection features_physical_quantities Features: Physical Quantities
+///
+/// The Physical Quantities library features the following physical quantities:
+///
+/// - PhQ::Acceleration
+/// - PhQ::Angle
+/// - PhQ::AngularSpeed
+/// - PhQ::Area
+/// - PhQ::BulkDynamicViscosity
+/// - PhQ::Direction
+/// - PhQ::Displacement
+/// - PhQ::DisplacementGradient
+/// - PhQ::DynamicKinematicPressure
+/// - PhQ::DynamicPressure
+/// - PhQ::DynamicViscosity
+/// - PhQ::ElectricCharge
+/// - PhQ::ElectricCurrent
+/// - PhQ::Energy
+/// - PhQ::Force
+/// - PhQ::Frequency
+/// - PhQ::GasConstant
+/// - PhQ::HeatCapacityRatio
+/// - PhQ::HeatFlux
+/// - PhQ::IsentropicBulkModulus
+/// - PhQ::IsobaricHeatCapacity
+/// - PhQ::IsochoricHeatCapacity
+/// - PhQ::IsothermalBulkModulus
+/// - PhQ::KinematicViscosity
+/// - PhQ::LameFirstModulus
+/// - PhQ::Length
+/// - PhQ::LinearThermalExpansionCoefficient
+/// - PhQ::MachNumber
+/// - PhQ::Mass
+/// - PhQ::MassDensity
+/// - PhQ::MassRate
+/// - PhQ::Memory
+/// - PhQ::MemoryRate
+/// - PhQ::PWaveModulus
+/// - PhQ::PlanarAcceleration
+/// - PhQ::PlanarDirection
+/// - PhQ::PlanarDisplacement
+/// - PhQ::PlanarForce
+/// - PhQ::PlanarHeatFlux
+/// - PhQ::PlanarPosition
+/// - PhQ::PlanarTemperatureGradient
+/// - PhQ::PlanarTraction
+/// - PhQ::PlanarVelocity
+/// - PhQ::PoissonRatio
+/// - PhQ::Position
+/// - PhQ::Power
+/// - PhQ::PrandtlNumber
+/// - PhQ::ReynoldsNumber
+/// - PhQ::ScalarAcceleration
+/// - PhQ::ScalarAngularAcceleration
+/// - PhQ::ScalarDisplacementGradient
+/// - PhQ::ScalarForce
+/// - PhQ::ScalarHeatFlux
+/// - PhQ::ScalarStrain
+/// - PhQ::ScalarStrainRate
+/// - PhQ::ScalarStress
+/// - PhQ::ScalarTemperatureGradient
+/// - PhQ::ScalarThermalConductivity
+/// - PhQ::ScalarTraction
+/// - PhQ::ScalarVelocityGradient
+/// - PhQ::ShearModulus
+/// - PhQ::SolidAngle
+/// - PhQ::SoundSpeed
+/// - PhQ::SpecificEnergy
+/// - PhQ::SpecificGasConstant
+/// - PhQ::SpecificIsobaricHeatCapacity
+/// - PhQ::SpecificIsochoricHeatCapacity
+/// - PhQ::SpecificPower
+/// - PhQ::Speed
+/// - PhQ::StaticKinematicPressure
+/// - PhQ::StaticPressure
+/// - PhQ::Strain
+/// - PhQ::StrainRate
+/// - PhQ::Stress
+/// - PhQ::SubstanceAmount
+/// - PhQ::Temperature
+/// - PhQ::TemperatureDifference
+/// - PhQ::TemperatureGradient
+/// - PhQ::ThermalConductivity
+/// - PhQ::ThermalDiffusivity
+/// - PhQ::Time
+/// - PhQ::TotalKinematicPressure
+/// - PhQ::TotalPressure
+/// - PhQ::Traction
+/// - PhQ::TransportEnergyConsumption
+/// - PhQ::VectorArea
+/// - PhQ::Velocity
+/// - PhQ::VelocityGradient
+/// - PhQ::Volume
+/// - PhQ::VolumeRate
+/// - PhQ::VolumetricThermalExpansionCoefficient
+/// - PhQ::YoungModulus
+///
+/// \ref features "(Back to Features)"
+///
+/// \subsection features_physical_models Features: Physical Models
+///
+/// The Physical Quantities library features the following physical models:
+///
+/// - PhQ::ConstitutiveModel
+///   - PhQ::ConstitutiveModel::CompressibleNewtonianFluid
+///   - PhQ::ConstitutiveModel::ElasticIsotropicSolid
+///   - PhQ::ConstitutiveModel::IncompressibleNewtonianFluid
+///
+/// \ref features "(Back to Features)"
+///
+/// \subsection features_units Features: Units
+///
+/// The Physical Quantities library features the following units of measure:
+///
+/// - PhQ::Unit::Acceleration
+/// - PhQ::Unit::Angle
+/// - PhQ::Unit::AngularAcceleration
+/// - PhQ::Unit::AngularSpeed
+/// - PhQ::Unit::Area
+/// - PhQ::Unit::Diffusivity
+/// - PhQ::Unit::DynamicViscosity
+/// - PhQ::Unit::ElectricCharge
+/// - PhQ::Unit::ElectricCurrent
+/// - PhQ::Unit::Energy
+/// - PhQ::Unit::EnergyFlux
+/// - PhQ::Unit::Force
+/// - PhQ::Unit::Frequency
+/// - PhQ::Unit::HeatCapacity
+/// - PhQ::Unit::Length
+/// - PhQ::Unit::Mass
+/// - PhQ::Unit::MassDensity
+/// - PhQ::Unit::MassRate
+/// - PhQ::Unit::Memory
+/// - PhQ::Unit::MemoryRate
+/// - PhQ::Unit::Power
+/// - PhQ::Unit::Pressure
+/// - PhQ::Unit::SolidAngle
+/// - PhQ::Unit::SpecificEnergy
+/// - PhQ::Unit::SpecificHeatCapacity
+/// - PhQ::Unit::SpecificPower
+/// - PhQ::Unit::Speed
+/// - PhQ::Unit::SubstanceAmount
+/// - PhQ::Unit::Temperature
+/// - PhQ::Unit::TemperatureDifference
+/// - PhQ::Unit::TemperatureGradient
+/// - PhQ::Unit::ThermalConductivity
+/// - PhQ::Unit::ThermalExpansion
+/// - PhQ::Unit::Time
+/// - PhQ::Unit::TransportEnergyConsumption
+/// - PhQ::Unit::Volume
+/// - PhQ::Unit::VolumeRate
+///
+/// \ref features "(Back to Features)"
+///
+/// \subsection features_unit_systems Features: Unit Systems
+///
+/// The Physical Quantities library features the following consistent systems of units of measure:
+///
+/// - PhQ::UnitSystem::MetreKilogramSecondKelvin
+/// - PhQ::UnitSystem::MillimetreGramSecondKelvin
+/// - PhQ::UnitSystem::FootPoundSecondRankine
+/// - PhQ::UnitSystem::InchPoundSecondRankine
+///
+/// \ref features "(Back to Features)"
+///
 /// \section developer_guide Developer Guide
 ///
 /// This section presents information pertinent to software developers of the Physical Quantities library: