1. BOOK REVIEWS: S.V. EMELYANOV, S.K. KOROVIN, N.A. BOBYLEV, A.V. BULATOV, HOMOTOPY OF EXTREMAL PROBLEMS, WALTER DE GRUYTER, BERLIN - NEW YORK, 2007, 303 PP, ISBN 978-1-11-018942-1. Authors: CORNEL PINTEA.2. BOOK REVIEWS: ALEXANDER H.W. SCHMITT, GEOMETRIC INVARIANT THEORY AND DECORATED PRINCIPAL BUNDLES, EUROPEAN MATHEMATICAL SOCIETY, 2008, 389 PP, ISBN 978-3-03719-065-4. Authors: CORNEL PINTEA.3. BOOK REVIEWS: MARTIN SCHECHTER, MINIMAX SYSTEMS AND CRITICAL POINT THEORY, XIV+239 PP, BIRKHÄUSER, BOSTON -BASEL - BERLIN, 2009, ISBN: 978-0-8176-4805-3, E-ISBN: 978-0-8176-4902-9. Authors: CORNEL PINTEA.4. BOOK REVIEWS: HENRI ANCIAUX, MINIMAL SUBMANIFOLDS IN PSEUDO-RIEMANNIAN GEOMETRY. Authors: CORNEL PINTEA.5. THE MINIMUM NUMBER OF CRITICAL POINTS OF CIRCULAR MORSE FUNCTIONS. Authors: DORIN ANDRICA, CORNEL PINTEA.6. CIRCULAR MAPPINGS WITH MINIMAL CRITICAL SETS. Authors: DORIN ANDRICA, CORNEL PINTEA.7. THE SIZE OF SOME VANISHING AND CRITICAL SETS. Authors: CORNEL PINTEA.8. RELATIVE AND MUTUAL MONOTONICITY. Authors: CORNEL PINTEA.9. THE LEVEL SETS OF FUNCTIONS WITH BOUNDED CRITICAL SETS AND BOUNDED HESS+ COMPLEMENTS. Authors: CORNEL PINTEA.