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We construct bases for the spaces of Eisenstein series of weight $\geq 2$attached to the congruence subgroups of $\text{Sl}_2(\mathbb{Z})$. The basiselements admit an explicit description in terms of Eisenstein series on aprincipal level contained in the congruence subgroup and possess a naturalparameterization by the cusps of the transpose of the corresponding subgroup.To address the sign problem intrinsic to the series of odd weights we introducea refinement of the notion of regularity of cusps. These arguments also yieldan elementary proof of the standard dimension formula for the spaces ofEisenstein series of weight $\geq 3$. The article is expository and weexplicitly work out the theory for $\Gamma_{1}(N)$ and $\Gamma_{0}(N)$.

A note on the spaces of Eisenstein series on general congruence subgroups of $\text{Sl}_2(\mathbb{Z})$