Front Cover -- Micro and Nanolignin in Aqueous Dispersions and Polymers -- Micro and Nanolignin in Aqueous Dispersions and Polymers: Interactions, Properties, and Applications -- Copyright -- Contents -- Contributors -- Contributors -- Preface -- 1 -- Microlignin: where to find it and how to recover it -- 1. Introduction -- 2. Sources of lignin -- 3. Lignin fractionation processes -- 3.1 Industrial scale processes -- 3.2 Lab-scale processes -- 4. Lignin based micro-particles -- 5. Conclusions -- References -- 2 -- Color characteristics of microlignin -- 1. Introduction -- 2. Chromophores in lignin -- 2.1 Coniferaldehyde and ferulic acid -- 2.2 Stilbenes and their unsaturated groups -- 2.3 Condensation products -- 2.4 Quinones and quinonemethides -- 2.5 Metal and hydrogen-bonded complexes -- 3. Color evaluation of lignin -- 3.1 ISO brightness -- 3.2 CIE L�a�b� -- 3.3 Munsell color system -- 3.4 UV-Vis and diffuse reflectance spectroscopy -- 3.5 Other color evaluation methods of lignin -- 4. Color reduction of lignin -- 4.1 Traditional bleaching and lignin degradation -- 4.2 Auxochromic effect of phenolic hydroxyl and methoxy -- 4.3 Fractionation contributions to the color of lignin -- 4.4 Micromorphology influence on the color of lignin -- 5. Color-dependent utilization of lignin -- 5.1 Lignin-based sunscreens -- 5.2 Lignin-based dispersants -- 5.3 Lignin-based inks -- 6. Outlook -- Acknowledgments -- References -- 3 -- Lignin depolymerization for monomers production by sustainable processes -- 1. Introduction -- 2. Depolymerization methodologies -- 2.1 Reductive depolymerization -- 2.2 Oxidative depolymerization -- 2.3 Acid-/base-catalyzed depolymerization -- 2.3.1 Acid-catalyzed depolymerization -- 2.3.2 Base-catalyzed depolymerization -- 2.4 Thermal depolymerization -- 2.5 Electrochemical depolymerization -- 2.6 Photocatalytic depolymerization.